Étiquette : India

 

Thanks to WEST’s new record, world’s nuclear fusion community moving forward

nuclear fusion ahead
Alain Bécoulet, in charge of ITER’s engineering department.


Karel Vereycken: Mr. Bécoulet, good morning, it’s great to have you on the phone.

Alain Bécoulet: Hello Mr. Vereycken, if I’ve understood correctly, you’re interested in what happened at WEST, in connection with the press releases that went out just about everywhere around May 15. (more below)

That’s right; I’ll give you my impressions and you can correct me. I understand that the Tore SUPRA Tokamak (in southern France)1, who with six minutes held a world record in duration till 2021, was a bit like your baby.

To tell the truth, I was director of the IRFM2, in charge of Tore SUPRA. If it can be considered “my baby”, it’s because under my governance it was radically modified and upgraded, and renamed “WEST”. Before me, it was Robert Aymar‘s baby3.

Tore SUPRA tokamak under construction.

Right! But in WEST, it’s the W that does it all. And it’s a W for tungsten, a very heat resisting material that absorbs less than graphite and makes the machine more efficient?

Yes, it does. The major change we made with WEST, is that we went from a circular-limiter machine 4 to a “divertor” machine.5

On Tore SUPRA, the vertical plasma action was a circle resting on a graphite limiter and the plasma simply touched it.

For some years now, we’ve discovered that making a plasma in the shape of a D, or in the shape of a fish with an X point — called a “divertor” — produces much better results in terms of confining heat and impurities, particles, etc. So it was time for Tore SUPRA to go there.

At the same time, Tore SUPRA itself made it clear for us, that for ITER, it was not possible to continue with carbon – which was ITER’s original intention – and so ITER switched and was reconfigured to tungsten.

Picture inside the WEST vacuum vessel showing the various tungsten armoured plasma-facing components (April 2018).

That’s when we took the opportunity to install a cooled tungsten divertor in Tore SUPRA. What’s more, Tore SUPRA’s mission has always been, even before ITER – we’ve been talking about it for a very long time now – the development and integration of technological solutions, and not so much performance-fusion.

If you put tritium in Tore SUPRA, you’re not going to get much in the way of power: it’s too small and not powerful enough in any ways to make fusion reactions of any note; but on the other hand, it’s perfectly relevant for all technological developments – it was on Tore SUPRA, it has to be recalled, that the first successful full-scale test of the superconducting coils now used in ITER took place!

I’m fully aware of that.

It was also Tore SUPRA that supplied all the rules for actively cooling all the components in front of the plasma, including diagnostics [i.e. measuring instruments], etc.; not forgetting solutions for continuous additional heating, in short a huge amount of technology.

So the idea, in the transition from Tore SUPRA to WEST, was to continue along the path of the “actively cooled tungsten divertor”.

Comparaison between Tore SUPRA and WEST.


I think the Koreans, too, with KSTAR, had already.…

There are several superconducting machines that have made equivalent advances –more successive than simultaneous– and that have inspired others; in this case, before talking about KSTAR, the machine that is closest to WEST, its little sister – you’re going to smile, but I didn’t call it WEST for nothing — is a machine that started up when Tore SUPRA was already operating, in Hefei, China, called EAST — with which we have cooperated enormously, both on coils and on plasma components, etc.

Chinese tokamak EAST.

So the two laboratories have cooperated enormously; I chose the name WEST because we wanted to change the name of Tore SUPRA, to rejuvenate it and mark the fact that we were making this technology; so we called it WEST, a sort of sister machine to EAST, and the two machines really work together (EAST has now installed a tungsten divertor, etc.). ); even some of the modifications we made to WEST were made in cooperation, in partnership with the EAST machine, with the Chinese Academy of Sciences, which supplied us with components, in particular the power supplies for the divertor coils, the new ICRH antennas, etc.; we had all this done by the Chinese.6

It’s extraordinary that this kind of cooperation can still take place in this world of conflict…

It really is! As for KSTAR, it’s quite a similar machine too, but I’d call it less pioneering. It’s only now arriving in this kind of world; it’s a long way behind –not that I’m blaming them, because since the teams are smaller, it’s more difficult– but that doesn’t stop us from cooperating a lot with KSTAR.

The only real difference with WEST lies in the coils, which are all inside a single cryostat (refrigeration system) – as with ITER, whereas in Tore SUPRA, when we built it, the coils were each in a separate cryostat.

To sum up: today, the large superconducting machines accompanying the ITER project are WEST, EAST, KSTAR and now the new JT60SA tokamak which has just gone into operation in Japan. It’s the size of the JET (at Culham in the UK) in superconductor, but doesn’t yet have a tungsten environment, and won’t for several years yet; so it’s not yet fully in a world as relevant, but it’s coming! And because it’s larger, it’ll probably outperform those EAST, WEST, etc. machines.

The press, and the official press release, reports a 15% gain in energy produced – which is still less than the energy spent on the reaction – and at the same time, they talk of a doubling of plasma density.

Please note: machines like WEST, EAST and KSTAR will never produce power fusion, for at least two good reasons:

  • they’re too small;
  • they’re not designed to hold tritium.

So there’s no fusion in these machines. Also, beware of energy gains and the like: these are gains in energy stored inside the machine, but not at all in energy supplied, in energy produced by fusion energy.

It’s not yet “break-even” (when the energy produced exceeds that of the reaction).

In fact, we improve confinement and increase confinement time. This improves the possibility of fusion, but we don’t enjoy fusion in these machines, which are too small and not powerful enough for that, particularly in terms of core plasma.

On the other hand, they are used because their edge plasma, i.e. the plasma inside the plasma interacting with structures such as tungsten, etc., is very similar to ITER’s. That’s why they’re so interesting, and as they can produce very long-lasting plasmas, the tests carried out in these machines are perfectly relevant to ITER.

So I’d like to come back to one of your questions, namely how this advances the promises of ITER. ITER is being built, and things are being manufactured, but ITER is a kind of big eater, constantly asking: “Can you continue the research?”

Inspection of tungstene components facing plasma in WEST Tokamak.

Obviously, we’re into things we’ve never tested, so anything we can test, anything that can debug things for us, is very welcome. So these machines, in particular WEST, EAST, etc., are helping us to consolidate our position, both in terms of design and in terms of manufacturing solutions –a divertor like the tungsten divertor currently cooled, it works!

And what WEST has just demonstrated– compared with the last time, when it achieved very high performance, particularly in terms of duration, with the Tore SUPRA configuration, on a carbon limiter, etc. — it did so in even more relevant conditions, thanks to a tungsten divertor.

The result of WEST was 364 seconds, or 6 minutes and 4 seconds, with an injected energy of 1.15 GJ, a stationary temperature of 50 million°C (4 keV) and an electron density twice that of the discharges obtained in the previous tokamak configuration, that of Tore SUPRA.

However, what’s really new and very important for ITER is that when these machines do this, it’s with components facing the plasma that are the same as ITER’s. We’ve taken great care to ensure that the WEST divertor has exactly the same technology as the ITER divertor. That’s how we test this technology, over timescales and with power flows arriving on these components that are highly relevant, as they are representative of the conditions in which they will live in ITER.


So ITER has become a globalized scientific experiment, decentralized and centralized at the same time.

ITER is the place where all the world’s fusion knowledge is being synthesized; but this process didn’t stop the day we signed the treaty, it’s being synthesized every day!

We continue to feed ITER with scientific and technical results. For example, if a machine says to us “wait a minute, you’ve done that, but we’ve found results that are different now that we’ve done more work”, we look at that very carefully, to find out whether or not there are any impacts. We’re in constant contact with all these people, to find out what’s coming out of the labs, experiments and simulations, and to find out whether or not there’s an impact on ITER, in which case we’re able to rectify the situation according to the scale of things

This sharing of cooperative data takes place in conditions of great trust?

It’s a scientific community that works like a scientific community, with no preconceptions, no ulterior motives, nothing at all.

A bit like the astronauts on the international space station?

Absolutely. We used to say “in the old days, it was taken for granted”, but now it’s true that it’s become almost surprising. If there’s a result in a Russian or Chinese machine, we have access to it and then we understand, we work, we discuss with them, it’s really very open.

That’s very promising.

We have to fight against the journalists who love to wonder whether there’s competition, whether someone has won or whatever…. That’s not what we’re about at all; we’re about cooperative scientific development. Everyone works in their own corner, of course, but for everyone! There’s no such thing as “I know, I know”, no, none of that exists in the world of fusion.

In the article I’m preparing, I’ll conclude by saying that the big problem with ITER is that there’s only one problem!

In a way, it’s almost true, it’s not the “big problem”, but it’s something that doesn’t encourage acceleration; competition encourages acceleration, we agree on that.

After all, the Chinese have 6 fusion reactors…

Be careful, they’re not “reactors”, beware of the vocabulary. They’re experiments, Tokamaks, plasma experiments, all much smaller. The biggest one I mentioned, in Japan, is ten times smaller than ITER!

Now there are start-ups and others, which we’re hosting here (at the CEA center in Cadarache, France) for three days; 50 start-ups are here, downstairs in the amphitheater, chatting with us; they’re all convinced they’re making reactors, but no! They’re just doing experiments, manips, experimental prototypes. Yes, even ITER isn’t a reactor. Mind you, the meaning of the word “reactor” is to produce electricity or energy, and we’re not there yet!

If someone tells you he is selling you a reactor, you can laugh in his face, because it’s not true, and it will remain so for a long time, unfortunately or fortunately, I don’t know. As far as the reactor phase is concerned, we’ve only just begun, with ITER, the transition to industry. That’s what we’re also doing these days, looking at how to transfer knowledge from laboratories – and ITER is THE world laboratory, in the true sense of the word, in the sense of a public research laboratory. How do we begin to transfer this to the industrialists who will have to build the reactors? But the time scale here isn’t next week!

Wouldn’t your real competitor be the National Ignition Facility (NIF)?7

Not even close! Because with the Americans, it’s in a way even worse, because they’re even less developed in their public research, it’s a long way from maturity. They once did a demonstration in a machine that wasn’t designed for it, and so on.

So if we wanted to go from the NIF to the reactor, we’d already have to make up all the ground we’ve accumulated since the state of magnetic fusion with the big JET experiments in 1997. So we’re almost 30 years away from reaching the levels of technological maturity, integration and overall maturity needed to move towards a reactor. And we, too, are still a long way from moving towards the reactor.

As far as competitors are concerned, to be honest, no one feels like a competitor today, and this is no joke: may the best man win! The problem is so complicated, and the stakes so high, that whoever comes up with the solution will have us all on our feet! There’s no such thing as competition.

We’re starting to see, with these new start-ups, people saying “yes, but we’re moving towards industrial solutions, etc., so we may develop patents that we obviously don’t want to reveal or sell”. Fair enough!

But hey, if they know how to make one of the “technological bricks” and it has a patent, good for them. But that’s not even going to stop us talking. A patent, once you’ve registered it, isn’t a secret, it’s simply something that belongs to you and that you can put on the public square; whoever uses it is just going to have to pay for it, that’s all. So it’s not a war or anything.

The problem is really extremely complicated, and we’re now entering the pre-industrial world of the thing, which is very exciting, isn’t it! I started my career as a theoretician 35 years ago, and I can tell you that we were really on the calculator and not even on the computer yet. Now we’re in: 1/ a complete demonstration of the feasibility of the whole system with ITER, which is in a way the end (the objective) of fundamental public research; 2/ the moment when we’ll say “here’s the great recipe, now it’s up to you to industrialize it, improve it, make it economically viable, etc.”. But ITER still has to show that we can do it, and I believe we can, even though we’re still building the machine and haven’t yet made plasma! But then again, on paper it’s always beautiful…

What do you see as the final hurdles? What more can the public authorities in the various countries do?

I’d encourage you to keep an eye on things until October-November, when the International Atomic Energy Agency (IAEA) will issue a strategic document, prepared by all of us –and I’m one of its key authors. It’s a global strategy document on the development of fusion energy, i.e. the production of energy through fusion.

It’s a very interesting document which, in around twenty pages, covers all the regulatory, technological, scientific and industrial aspects – everything you could possibly dream of: it’s got it all!

And it gives a great deal of information on the challenges facing this community – which is in the process of moving from a purely public research community to a mixed public-private community, moving towards industry, etc. – and on what remains to be done by this community, in terms of nuclear regulations, industrialization, work on the overall efficiency of all sub-systems, and availability (a reactor can’t just run for three minutes every day, it has to work 24 hours a day for 40 years).

This strategic document, which will be issued by the International Agency, should enable all players – I’d almost say “outsiders”: investors, the press, politicians, etc. – to understand where the merger stands and what remains to be done. So it’s a fairly ambitious document, with such a lofty goal, but one that has been made simple and readable for once; we’ve put a lot of effort into it, and I think we’ve succeeded.

It’s really condensed: each paragraph covers 40 or 50 years of research (!), but I think it’s understandable; at the moment it’s being edited by the IAEA, and will be published in early autumn.

Ok, we’ll watch that.

And finally, here are my thoughts on what remains to be done for fusion:

  • New technological building blocks. There are things that even ITER won’t be able to do, such as fully demonstrating the closure of the tritium cycle – how to make tritium, and how to really burn it in situ; we’re going to do a few demonstrations, but we don’t yet have the complete cycle, and we won’t have it just with ITER.
  • Materials. Since magnetic fusion generates very energetic neutrons, and lots of them – a machine like ITER is designed to live for a certain time with a certain plasma rhythm, so it has no problem surviving these neutrons. But if we built the same ITER and ran it for 40 years, 24 hours a day, it wouldn’t last; its materials wouldn’t stand up to the shock. So we need other materials, and materials research and development.
  • This brings us to maintenance: how can we learn to intervene in these kinds of objects without disturbing them too much, working with robotics and appropriate intelligence to understand these extremely complex systems? So we also need to model them; some elements are very difficult to manufacture, so we need to think about how to work on the design so that manufacturers have less difficulty in doing what they’re asked to do, etc.
  • There are also nuclear regulations.

Is this new measuring device just demonstrated on WEST really a breakthrough?

The first to communicate this WEST result were the Americans, which surprised me, but hey, why not?

Yes, it surprised me too.

Because of an unfortunate sentence at the beginning of their article, we got the impression that WEST was a machine from the Princeton laboratory!

Yes, that’s right!

International Cooperation

I spoke to you about the collaboration with China; when I created WEST, we set up a collaborative, partnership-based process that is almost even more ambitious than ITER. We partnered some thirty laboratories around the world to help us build WEST. It thus became a kind of international machine, operated by the CEA without any problems, but an international machine, and we played the same role as ITER: we tried to do what we call supply in kind –I mentioned the Chinese, who gave us power supplies, heating antennas, etc., but there are many countries like that: the Indians have manufactured and supplied us with things, and in this case the Princeton laboratory has designed, manufactured and installed a diagnostic: what you call a measuring instrument is in fact an advance that we test on the machine, and the Americans, or the Princeton people now, can now say “there, we know how to do that, and the proof: we tested it there and there, etc.”. You can think of these major research instruments (like WEST, EAST, etc.), particularly in the field of fusion, as test benches for all kinds of things.

Do we have a machine that actually makes plasma? It’s a bit like CERN (Geneva based particle accellerator), where you’ve got a device that accelerates particles, and then you’ve got lots of people who come to watch, put particles together, make them collide like this, put them in this detector, make them do something, and exploit the science that goes with it.

A Tokamak is also a test bench somewhere, for testing components with plasma, diagnostics, heating systems and so on. So it lends itself well to partnership, because you’ve got a central unit, a central operator who’s going to do the bulk of the machine, who’s going to rectify the coils or the enclosures, etc.; and then afterwards, you can have a huge number of people who are going to come and contribute to a brick that we’re going to put into this machine.

And WEST works with China, with Korea, with many French laboratories –CNRS laboratories and universities that simply bring us diagnostics or simulations – with the United States, with India and with many other countries. And we have a steering committee; for this machine, it’s not just the CEA that decides on its experimental plan: once a year, people from all these labs get together to examine what we’ve done and what we want to do with this machine. Remember that these are always integrated contributions, mixing technology and physics.

It’s wonderful! Thank you for your answers, which have shown us the global, shared process towards a more peaceful world.

We’re trying… We believe in scientific diplomacy here. It’s not easy, it’s no easier than normal diplomacy, but scientific diplomacy does exist, it’s an aspect we believe in and demonstrate every day, we show that it exists and that it also contributes, effectively, to the planet’s progress, even if sometimes it’s more difficult… I’m used to comparing it to sports or artistic diplomacy; the Olympic Games shouldn’t turn as sour as it’s turning, it doesn’t make sense.

Thank you, congratulations, we’re proud of you and your teams, keep up the good work!

Thank you very much. See you soon.

  1. With a major radius of 2.25m (machine centre to plasma centre) and a minor radius of 0,70m,  Tore Supra (before it was reconfigured as WEST) was one of the largest tokamaks in the world. Its main feature was the superconducting toroidal magnets which enabled generation of a permanent toroidal magnetic field. Tore Supra was also the only tokamak with plasma facing components actively cooled. Theses two features allow the study of plasma with long pulse duration. ↩︎
  2. Institut de recherche sur la fusion par confinement magnétique (Institute for Research on Fusion by Magnetic Confinement. ↩︎
  3. Robert Aymar was the Director General of CERN (2004–2008), serving a five-year term in that role. In 1977, Robert Aymar was appointed Head of the Tore Supra Project, to be constructed at Cadarache (France). In 1990, he was appointed Director of the Direction des Sciences de la Matière of the CEA, where he directed a wide range of basic research programmes, both experimental and theoretical. ↩︎
  4. The “Limiter” of the Tore SUPRA tokamak (made of graphite), was the element that extracted most of the energy contained in the plasma (in the shape of a flat circular ring located in the lower part of the donut shaped machine).
    ↩︎
  5. In WEST, the actively cooled 456-component divertor at the bottom of the vacuum vessel extracts the heat and ash produced by the fusion reaction, minimizes plasma contamination and protects the surrounding walls from thermal and neutron loads. ↩︎
  6. Most of this industrial production (i.e. 16,000 blocks of tungsten), was carried out by AT&M (China), with the support of the Chinese laboratory ASIPP as part of the joint CEA-China collaboration (SIFFER, SIno French Fusion Energy centeR). Already, in 2016, the Institute of Plasma Physics (ASIPP) of the Chinese Academy of Sciences (CAS), had supplied ICRH (Ion Cyclotron Resonant Heating) antennas for Tore SUPRA. ↩︎
  7. In December 2022, an NIF experiment used 2.05 megajoules of laser energy to produce 3.15 megajoules of fusion energy.
    ↩︎
Merci de partager !

The Maritime Silk Road, a history of 1001 Cooperations

Identical reconstruction of one of the ships featured on the bas-reliefs of the 8th-century Buddhist temple of Bonobudur in Indonesia.

Today, it’s fashionable to present maritime issues in the context of a moribund British geopolitical ideology that pits countries and peoples against each other. However, as this brief history of the Maritime Silk Road, drawn mainly from a document by the International Tourism Organization, demonstrates, the ocean has above all been a fantastic place for fertile encounters, cultural cross-fertilization and mutually beneficial cooperation.

The ancient Chinese invented many of the things we use today, including paper, matches, wheelbarrows, gunpowder, the noria (water elevator), sluice locks, the sundial, astronomy, porcelain, lacquer paint, the potter’s wheel, fireworks, paper money, the compass, the stern rudder, the tangram, the seismograph, dominoes, skipping rope, kites, the tea ceremony, the folding umbrella, ink, calligraphy, animal harnesses, card games, printing, the abacus, wallpaper, the crossbow, ice cream, and especially silk, which we’ll be talking about here.

Chinese silk.

The Origins of Silk

Before we talk about silk « routes », a few words about the origins of sericulture, i.e. the rearing of silkworms.

As recent archaeological discoveries confirm, silk production is an age-old skill. The presence of the mulberry tree for silkworm rearing was noted in China around the Yellow River by the Yangshao culture during the Middle Neolithic period in China, from 4500 to 3000 BC.

In general, we prefer to retain the legend that silk was discovered around 2500 BC, by the Chinese princess Si Ling-chi, when a cocoon accidentally fell into her tea bowl. When she tried to remove it, she discovered that the cocoon, softened by the hot water, had a delicate, soft and strong thread that could be unwound and assembled. Thus was born the idea of making cloth. The princess then decided to plant a number of white mulberry trees in her garden to raise silkworms.

The silkworm’s reproductive cycle.

The silkworms (or bombyx) and mulberry trees were divinely cared for by the princess (silkworms feed solely on the leaves of white mulberry trees).

Silk production is a time-consuming process that requires careful monitoring. Silk moths lay around 500 eggs during their lives, which last from 4 to 6 days. After the eggs hatch, the baby worms feed on mulberry leaves in a controlled environment. They have a ferocious appetite and their weight can increase considerably. Once they’ve stored up enough energy, the worms secrete a white jelly from their silk glands and use it to build a cocoon around themselves. After eight or nine days, the worms are killed and the cocoons are immersed in boiling water to soften the protective filaments, which are wound onto a spool. These filaments can be 600 to 900 meters long. Several filaments are assembled to form a thread. The silk threads are then woven into a fabric or used for fine embroidery or brocade, a rich silk fabric embellished with brocaded designs in gold and silver thread.

Chinese treatise on agiculture and silk production (1313).

The Early Silk Trade

Under threat of capital punishment, sericulture remained a well-kept secret, and China retained its monopoly on manufacturing for millennia.

It wasn’t until the Zhou dynasty (1112 BC) that a maritime Silk Road was established from China to Japan and Korea, as the government decided to send Chinese from the port in Bohai Bay (on the Shandong Peninsula) to train local inhabitants in sericulture and agriculture. The techniques of silkworm rearing, reeling and weaving were gradually introduced to Korea via the Yellow Sea.

When Emperor Qin Shi Huang unified China (221 BC), many people from the states of Qi, Yan and Zhao fled to Korea, taking with them silkworms and their rearing techniques. This accelerated the development of silk spinning in Korea.

Korea played a central role in China’s international relations, particularly as an intellectual bridge between China and Japan. Its trade with China also enabled the spread of Buddhism and porcelain-making methods. Although initially reserved for the imperial court, silk spread throughout Asian culture, both geographically and socially. Silk quickly became the luxury fabric par excellence that the whole world craved.

During the Han dynasties (206 BC to 220), a dense network of trade routes exploded cultural and commercial exchanges across Central Asia, profoundly impacting civilizational dynamics. The Han dynasty continued to build the Great Wall, notably creating the commandery of Dunhuang (Gansu), a key post on the Silk Road. Over two centuries B.C., its trade extended to Greece and Rome, where silk was reserved for the elite.

In the IIIrd century, India, Japan and Persia (Iran) unlocked the secret of silk manufacture and became major producers.

Silk Reaches Europe

The Nestorian monks sent by Justinian give the silkworms to the emperor.

According to a story by Procopius, it was not until 552 AD that the Byzantine emperor Justinian obtained the first silkworm eggs. He had sent two Nestorian monks to Central Asia, and they were able to smuggle silkworm eggs to him hidden in rods of bamboo. While under the monks’ care, the eggs hatched, though they did not cocoon before arrival.

A church manufacture in the Byzantine Empire was thus able to make fabrics for the emperor. Later emerged the intention of developing a large silk industry in the Eastern Roman Empire, using techniques copied from the Persian Sassanids.

Another version claims that it was the Han emperor Wu (IInd century) who sent ambassadors, bearing gifts such as silk, to the West.

In the VIIth century, sericulture spread to Africa and Sicily, from where, under the impetus of Roger I of Sicily (c. 1034-1101) and his son Roger II (1093-1154), the silkworm and mulberry were introduced to the ancient Peloponnese.

In the Xth century, Andalusia became the epicenter of silk manufacturing with Granada, Toledo and Seville. With the Arab conquest, sericulture spread to the rest of Spain, Italy (Venice, Florence and Milan) and France. The earliest French traces of sericulture date back to the 13th century, notably in the Gard (1234) and Paris (1290).

In the XVth century, faced with the ruinous import of Italian silk (raw or manufactured), Louis XI tried to set up silk factories, first in Tours on the Loire, then in Lyon, a city at the crossroads of north-south routes where Italian emigrants were already trading in silks.

In the XIXth century, silk production was industrialized in Japan, but in the XXth century, China regained its place as the world’s largest producer. Today, India, Japan, the Republic of Korea, Thailand, Vietnam, Uzbekistan and Brazil all have large production capacities.

Cultural Melting Pot

Kingdom of Funan

As much as silk itself, the transportation of silk by sea dates back to time immemorial.

For the Chinese, there are two main routes: the East China Silk Road (to Korea and Japan) and the South China Silk Road (via the Strait of Malacca to India, the Persian Gulf, Africa and Europe).

In Vietnam, the Hanoi Museum holds a coin dating back to the year 152, bearing the effigy of the Roman emperor Antoninus the Pious. The coin was discovered in the remains of Oc Eo, a Vietnamese town south of the Mekong Delta, thought to have been the main port of the Funan Kingdom (Ist to IXth centuries).

This kingdom, which covered the territory of present-day Cambodia and the Mekong Delta administrative region of Vietnam, flourished from the 1st to the 9th century. The first mention of the Fou-nan kingdom appears in the report of a Chinese mission that visited the area in the 3rd century.

The Founamians were at the height of their power when Hinduism and Buddhism were introduced to Southeast Asia.

Then, from Egypt, Greek merchants reached the Bay of Bengal. Considerable quantities of pepper then reached Ostia, Rome’s port of entry. All the historical evidence shows that East-West trade was flourishing as early as the first millennium.

Persians and Arabs in India, China and Asia

Island of Failaka (Persian Gulf in front of Kuweit), a meeting place where Greek, Roman and Chinese traders exchanged good.

On the western side, at the entrance to Kuwait Bay, 20 kilometers off the coast of Kuwait City, not far from the mouth of the shared estuary of the Tigris and Euphrates rivers in the Persian Gulf, the island of Failaka was one of the meeting places where Greece, Rome and China exchanged goods.

Sassanid Empire.

Under the Sassanid dynasty (226-651), the Persians developed their trade routes all the way to Southeast Asia, via India and Sri Lanka.

This trading infrastructure was later taken over by the Arabs when, in 762, they moved to Baghdad.

Chinese and Indian presidents, Xi Jinping and Narendra Modi, exploring the workings of the weaving wheel, the fruit of exchanges between Arabs, Indians and Chinese.
Arab dhow.

From the IXth century onwards, the city of Quilon (Kollam), the capital of Kerala in India, was home to colonies of Arab, Christian, Jewish and Chinese merchants.

On the western side, Persian and then Arab navigators played a central role in the birth of the maritime Silk Road. Following the Sassanid routes, the Arabs pushed their dhows, or traditional Arab sailing ships, from the Red Sea to the Chinese coast and as far as Malaysia and Indonesia.

These sailors brought with them a new religion, Islam, which spread throughout Southeast Asia. While the traditional pilgrimage (the hajj) to Mecca was initially only an aspiration for many Muslims, it became increasingly possible for them to make it.

During the monsoon season, when winds were favorable for sailing to India in the Indian Ocean, the twice-yearly trade missions were transformed into veritable international fairs, offering an opportunity to transport large quantities of goods by sea in conditions (apart from pirates and unpredictable weather) relatively less exposed to the dangers of overland transport.

The Maritime Silk Road under the Sui, Tang and Song Dynasties

Luoyang Bridge, a masterpiece of ancient architecture in Quanzhou.

It was under the Sui dynasty (581-618) that the Maritime Silk Road set out from Quanzhou, a coastal city in Fujian province in south-east China, on its first trade routes.

With its wealth of scenic spots and historic sites, Quanzhou has been proclaimed « the starting point of the Maritime Silk Road » by UNESCO.

It was at this time that the first printing methods appeared in China. Wooden blocks were used to print on textiles. In 593, the Sui emperor Wen-ti ordered the printing of Buddhist images and writings. One of the earliest printed texts is a Buddhist script dating from 868, found in a cave near Dunhuang, a stopover town on the Silk Road.

Under the Tang dynasty (618-907), the Kingdom’s military expansion brought security, trade and new ideas. The fact that the stability of Tang China coincided with that of Sassanid Persia enabled the land and sea Silk Roads to flourish. The great transformation of the maritime Silk Road began in the 7th century, when China opened up to international trade. The first Arab ambassador took up his post in 651.

Mural fresco executed in 706, of the Tang Emperor’s tomb, with diplomatic emissaries to the Imperial Court. The two figures on the right, carefully dressed, represent Korea, while the one in the middle (a monk?), without a headdress and with a « big nose », represents the West.

The Tang Dynasty chose Chang’an (now Xi’an) as its capital. It adopted an open attitude towards different beliefs. Buddhist, Taoist and Confucian temples coexisted peacefully with mosques, synagogues and Nestorian Christian churches. As the terminus of the Silk Road, Chang’an’s western market is becoming the center of world trade. According to the Tang Authority Six register, over 300 nations and regions had trade relations with Chang’an.

Almost 10,000 foreign families from the west lived in the city, especially in the area around the western market. There were many foreign inns staffed by foreign maids chosen for their beauty. The most famous poet in Chinese history, Li Bai, often strolled among them. Foreign food, costumes and music were the fashion of Chang’an.

After the fall of the Tang dynasty, the Five Dynasties and the Ten Kingdoms (907-960), the arrival of the Song dynasty (960-1279) ushered in a new period of prosperity, characterized by increased centralization and economic and cultural renewal. The maritime silk route regained its momentum. In 1168, a synagogue was built in Kaifeng, capital of the Southern Song dynasty, to serve merchants on the Silk Road.

During the same period, as Islam expanded, trading posts sprang up all around the Indian Ocean and the rest of Southeast Asia.

China encouraged its merchants to seize the opportunities offered by maritime traffic, in particular the sale of camphor, a highly sought-after medicinal plant. A veritable trade network developed in the East Indies under the auspices of the Kingdom of Sriwijaya, a city-state in southern Sumatra, Indonesia (see below), which for nearly six centuries served as a link between Chinese merchants on the one hand, and Indians and Malays on the other. A trade route truly emerged, deserving the name of the maritime « Silk Road ».

Increasing quantities of spices passed through India, the Red Sea and Alexandria in Egypt, before reaching the merchants of Genoa, Venice and other Western ports. From there, they moved on to the northern European markets of Lübeck (Germany), Riga (Lithuania) and Tallinn (Estonia), which from the 12th century onwards became important cities in the Hanseatic League.

After seven years of excavation, over 60,000 porcelain objects dating from the Song Dynasty (960-1279) were discovered on the Nanhai ship (South China Sea), which had been underwater for over 800 years.
A XVth-century junk from the Ming dynasty.

In China, during the reign of the Song emperor Renzong (1022-1063), a great deal of money and energy was spent on bringing together knowledge and know-how. The economy was the first to benefit.

Drawing on the know-how of Arab and Indian sailors, Chinese ships became the most advanced in the world.

The Chinese, who had invented the compass (at least by 1119), quickly surpassed their competitors in cartography and the art of navigation, as the Chinese junk became the bulk carrier par excellence.

In his geographical treatise, Zhou Qufei, in 1178, reports:

« The big ships that cruise the South Sea are like houses. When they unfold their sails, they look like huge clouds. Their rudders are dozens of feet long. A single ship can house several hundred men. On board, there’s enough food to last a year.« 


Archaeological digs confirm this reality, such as the wreck of a XIVth-century junk found off the coast of Korea, in which over 10,000 pieces of ceramic were discovered.

During this period, coastal trade gradually shifted from the hands of Arab traders to those of Chinese merchants. Trade expanded, notably with the inclusion of Korea and the integration of Japan, the Malabar coast of India, the Persian Gulf and the Red Sea into existing trade networks.

China exported tea, silk, cotton, porcelain, lacquers, copper, dyes, books and paper. In return, it imported luxury goods and raw materials, including rare woods, precious metals, precious and semi-precious stones, spices and ivory.

Copper coins from the Song period have been discovered in Sri Lanka, and porcelain from this period has been found in East Africa, Egypt, Turkey, some Gulf states and Iran, as well as in India and Southeast Asia.

The Importance of Korea and the Kingdom of Silla


During the first millennium, culture and philosophy flourished on the Korean peninsula. A well-organized and well-protected trading network with China and Japan operated there.

On the Japanese island of Okino-shima, numerous historical traces bear witness to the intense exchanges between the Japanese archipelago, Korea and the Asian continent.

Excavations carried out in ancient tombs in Gyeongju, today a South Korean city of 264,000 inhabitants and capital of the ancient Kingdom of Silla (from 57 BC to 935), which controlled most of the peninsula from the VIIth to the IXth century, demonstrate the intensity of this kingdom’s exchanges with the rest of the world, via the Silk Road.

Indonesia, a Major Maritime Power at the Heart of the Maritime Silk Road



In Indonesia, Malaysia and southern Thailand, the Kingdom of Sriwijaya (VIIth to XIIIth centuries) played a major role as a maritime trading post, storing high-value goods from the region and beyond for later sale by sea. In particular, Sriwijaya controlled the Strait of Malacca, the essential sea passage between India and China.

At the height of its power in the XIth century, Sriwijaya’s network of ports and trading posts traded a vast array of products and commodities: rice, cotton, indigo and silver from Java, aloe (a succulent plant of African origin), vegetable resins, camphor, ivory and rhinoceros horns, tin and gold from Sumatra, rattan, redwoods and other rare woods, gems from Borneo, rare birds and exotic animals, iron, sandalwood and spices from East Indonesia, India and Southeast Asia, and porcelain, lacquer, brocade, textiles and silk from China.

With its capital at Palembang (population 1.7 million) on the Musi River in what is now the southern province of Sumatra, this Hindu-Buddhist-inspired kingdom, which flourished from the VIIIth to the XIIIth century, was the first major Indonesian kingdom and the country’s first maritime power.

By the VIIth century, it ruled a large part of Sumatra, the western part of Java and a significant part of the Malay Peninsula. It extended as far north as Thailand, where archaeological remains of Sriwijaya cities still exist.

Buddhism on the Maritime Silk Road

The museum in Palembang (today Indonesia) – a town where Chinese, Indian, Arab and Yemeni communities, each with their own particular institutions, have co-prospered for generations – tells a wonderful story of how the Maritime Silk Road generated exemplary mutual cultural enrichment.

Buddhism was closely tied to international or cross-boundary trade. Early inscriptions indicate it was common for seafarers to pray to the Buddha for a safe voyage.

The maritime routes were very challenging as they were often beset with cyclones and typhoons, and piracy was an ever-present danger.

As a consequence, merchant support for Buddhism along these travel routes helped to establish monastic life far beyond India. Monks and nuns also took passage on these trading ships, and the merchants sought good karma by helping them travel to spread the teachings of the Buddha.

Madagascar, Sanskrit and the Cinnamon Road


Map of the expansion of Austronesian languages.


Today, Madagascar is inhabited by Blacks and Asians. DNA tests have confirmed what has long been known: many of the island’s inhabitants are descended from Malay and Indonesian sailors who set foot on the island around the year 830, when the Sriwijaya Empire extended its maritime influence towards Africa.

Further evidence of this presence is the fact that the language spoken on the island borrows Sanskrit and Indonesian words.

Bas-relief from the Buddhist temple of Borobudur (8th century, Indonesia)

To demonstrate the feasibility of such sea voyages, in 2003 a team of researchers sailed from Indonesia to Ghana via Madagascar aboard the Borobudur, a reconstruction of one of the sailing ships featured in many of the 1,300 bas-reliefs decorating the 8th-century Buddhist temple of Borobudur on the island of Java in Indonesia.

Many believe that this vessel is a representation of those once used by Indonesian merchants to cross the ocean to Africa. Indonesian navigators usually used relatively small boats. To ensure balance, they fitted them with outriggers, both double (ngalawa) and single.

Their boats, whose hulls were carved from a single tree trunk, were called sanggara. Merchants from the Indonesian archipelago could reach as far east as Hawaii and New Zealand, a distance of over 7,000 km.

On the Cinnamon Route, the ship made its way from Indonesia to Accra, Ghana, via Madagascar.

In any case, the researchers’ boat, equipped with an 18-meter-high mast, managed to cover the Jakarta – Maldives – Cape of Good Hope – Ghana route, a distance of 27,750 kilometers, or more than half the circumference of the Earth!

The expedition aimed to retrace a very specific route: the cinnamon route, which took Indonesian merchants all the way to Africa to sell spices, including cinnamon, a highly sought-after commodity at the time. Cinnamon was already highly prized in the Mediterranean basin long before the Christian era.

On the walls of the Egyptian temple at Deir el-Bahari (Luksor), a painting depicts a major naval expedition.

On the walls of the Egyptian temple at Deir el-Bahari (Luksor), a painting depicts a major naval expedition said to have been ordered by Queen Hatshepsut, who reigned from 1503 to 1482 BC. Around the painting, hieroglyphs explain that these ships carried various species of plants and fragrant essences destined for the cult. One of these was cinnamon. Rich in aroma, it was an important component of ritual ceremonies in the kingdoms of Egypt.

Cinnamon originally grew in Central Asia, the eastern Himalayas and northern Vietnam. The southern Chinese transplanted it from these regions to their own country and cultivated it under the name gui zhi.

Unsurprisingly, the map of Austronesian language expansion is almost identical to that of the « Cinnamon Road. »


From China, gui zhi spread throughout the Indonesian archipelago, finding a very fertile home there, particularly in the Moluccas. In fact, the international cinnamon trade was a monopoly held by Indonesian merchants. Indonesian cinnamon was prized for its excellent quality and highly competitive price.

The Indonesians sailed great distances, up to 8,000 km, across the Indian Ocean to Madagascar and northeast Africa. From Madagascar, products were transported to Rhapta, in a coastal region that later became known as Somalia. From there, Arab merchants shipped them north to the Red Sea.

The Strait of Malacca

For China, the Strait of Malacca has always represented a major strategic interest. When the great Chinese admiral Zheng He led the first of his expeditions to India, the Near East and East Africa between 1405 and 1433, a Chinese pirate by the name of Chen Zuyi took control of Palembang.

Zheng He defeated Chen’s fleet and captured the survivors. As a result, the strait once again became a safe shipping route.

According to tradition, a prince of Sriwijaya, Parameswara, took refuge on the island of Temasek (present-day Singapore), but eventually settled on the west coast of the Malay Peninsula around 1400 and founded the city of Malacca, which would become the largest port in Southeast Asia, both successor to Sriwijaya and precursor to Singapore.

Following the decline of Sriwijaya, the Kingdom of Majapahit (1292-1527), founded at the end of the XIIIth century on the island of Java, came to dominate most of present-day Indonesia.

This was the period when Arab sailors began to settle in the region.

The Majapahit kingdom established relations with the Kingdom of Champa (192-1145; 1147-1190; 1220-1832) (South Vietnam), Cambodia, Siam (Thailand) and southern Myanmar.

The Majapahit kingdom also sent missions to China. As its rulers extended their power to other islands and sacked neighboring kingdoms, they sought above all to increase their share and control of the trade in goods passing through the archipelago.

The island of Singapore and the southernmost part of the Malay Peninsula was a key crossroads on the ancient maritime Silk Road.

Archaeological excavations in the Kallang estuary and along the Singapore River have uncovered thousands of shards of glass, natural and gold beads, ceramics and Chinese coins from the Northern Song period (960-1127).

The rise of the Mongol Empire in the middle of the XIIIth century led to an increase in seaborne trade and contributed to the vitality of the Maritime Silk Road.

Marco Polo, after a 17-year overland journey to China, returned by ship. After witnessing a shipwreck, he sailed from China to Sumatra in Indonesia, before setting foot on land again at Hormuz in Persia (Iran).

Under the Yuan and Ming Dynasties

Under the Song dynasty, large quantities of silk goods were exported to Japan. Under the Yuan dynasty (1271-1368), the government set up the Shi Bo Si, a trade office, in a number of ports, including Ningbo, Canton, Shanghai, Ganpu, Wenzhou and Hangzhou, enabling silk exports to Japan.

During the Tang, Song and Yuan dynasties, and at the beginning of the Ming dynasty, each port set up an oceanic trading department to manage all foreign maritime trade.

Maritime travel was dependent on the seasonal winds: the summer monsoons blow from the south-west (May to September) and reverse direction in the winter (October to April). As a result, seafaring merchants developed sailing circuits that allowed them to use the monsoon winds to travel long distances, then return home when the wind patterns shifted.

Trade with southern India and the Persian Gulf flourished. Trade with East Africa also developed with the monsoon season, bringing ivory, gold and slaves. In India, guilds began to control Chinese trade on the Malabar coast and in Sri Lanka.

Trade relations became more formalized, while remaining highly competitive. Cochin and Kozhikode (Calicut), two major cities in the Indian state of Kerala, competed to dominate this trade.

Admiral Zheng He’s Maritime Explorations

Map of Admiral Zheng He’s maritime expeditions.

Chinese maritime exploration reached its apogee in the early XVth century under the Ming dynasty (1368-1644), which chose a Muslim court eunuch, Admiral Zheng He, to lead seven diplomatic naval expeditions.

Financed by Emperor Ming Yongle, these peaceful missions to Southeast Asia, East Africa, the Indian Ocean, the Persian Gulf and the Red Sea were intended above all to demonstrate the prestige and grandeur of China and its Emperor. The aim was also to recognize some thirty states and establish political and commercial relations with them.

In 1409, prior to one of these expeditions, the Chinese admiral Zheng He asked craftsmen to make a carved stone stele in Nanjing, the present-day capital of Jiangsu province (eastern China). The stele traveled with the flotilla and was left in Sri Lanka as a gift to a local Buddhist temple. Prayers to the deities in three languages – Chinese, Persian and Tamil – were engraved on the stele. It was found in 1911 in the town of Galle, in south-west Sri Lanka, and a replica is now in China.

Zheng’s armada was made up of armed bulk carriers, the most modest being larger than Columbus’ caravels. The largest were 100 meters long and 50 meters wide. According to Ming chronicles of the time, an expedition could comprise 62 ships, each carrying 500 people. Some carried military cavalry, others tanks of drinking water. Chinese shipbuilding was ahead of its time. The technique of hermetic bulkheads, imitating the internal structure of bamboo, offered incomparable safety. It became the standard for the Chinese fleet before being copied by the Europeans 250 years later. Compasses and celestial maps painted on silk were also used.

The synergy that may have existed between Arab, Indian and Chinese sailors, all men of the sea who fraternized in the face of ocean adversity, was impressive. For example, some historians believe that the name « Sindbad the Sailor », which appears in the Persian tale of a sailor’s adventures from the time of the Abbasid dynasty (VIIIth century) and was included in the Tales of the One Thousand and One Nights, derives from the word Sanbao, the honorary nickname given by the Chinese Emperor to Admiral Zheng He, literally meaning « The Three Jewels », i.e. the three indissociable capital virtues: essence, breath, and spirit.

Statue of Admiral Zheng Ho in front of a mosque built in his honor in Indonesia.

Maritime museums in China (Hong Kong, Macau, Fuzhou, Tianjin and Nanjing), Singapore, Malaysia and Indonesia showcase Admiral Zheng’s expeditions.

However, at least twelve other admirals carried out similar expeditions to Southeast Asia and the Indian Ocean.

In 1403, Admiral Ma Pi led an expedition to Indonesia and India. Wu Bin, Zhang Koqing and Hou Xian made others. After lightning caused a fire in the Forbidden City, a dispute broke out between the eunuch class, supporters of the expeditions, and the learned mandarins, who obtained the cessation of expeditions deemed too costly. The last voyage took place between 1430 and 1433, 64 years before the Portuguese explorer Vasco da Gama arrived in 1497.

Japan, for its part, similarly restricted its contacts with the outside world during the Tokugawa period (1600-1868), although its trade with China was never suspended. It was only after the Meiji Restoration in 1868 that a Japan open to the world re-emerged.

Withdrawing into themselves, trade with both China and Japan fell into the hands of maritime trading posts such as Malacca in Malaysia or Hi An in Vietnam, two cities now recognized by Unesco as world heritage sites. H?i An was a major stopover port on the sea route linking Europe and Japan via India and China. In the shipwrecks found at Hi An, researchers have discovered ceramics awaiting their departure for Sinai in Egypt.

History of Chinese Ports

Over the years, the main ports on the Maritime Silk Road have changed. From the 330s onwards, Canton and Hepu were the two most important ports. However, Quanzhou replaced Canton from the end of the Song to the end of the Yuan dynasty. At that time, Quanzhou in Fujian province and Alexandria in Egypt were considered the world’s largest ports. Due to the policy of closure to the outside world imposed from 1435 and the influence of war, Quanzhou was gradually replaced by the ports of Yuegang, Zhangzhou and Fujian.

From the beginning of the IVth century, Canton was an important port on the Silk Road. Gradually, under the Tang and Song dynasties, it became not only the largest, but also the most renowned port of the Orient worldwide. During this period, the sea route linking Canton to the Persian Gulf via the South China Sea and the Indian Ocean was the longest in the world.

Although later supplanted by Quanzhou under the Yuan dynasty, Canton remained China’s second-largest commercial port. Compared with the others, it is considered to have been a consistently prosperous port over the 2,000-year history of the Maritime Silk Road.

The Tributary System of 1368

China’s last imperial dynasty, the Qing, reigned from 1644 to 1912.

Since the arrival of the Ming dynasty, maritime trade with China proceded in two different ways:

  • The Chinese « tributary system » ;
  • The Canton system (1757-1842).

Born under the Ming in 1368, the « tributary system » reached its apogee under the Qing. It took the refined form of a mutually beneficial, inclusive hierarchy.

States adhering to it showed respect and gratitude by regularly presenting the Emperor with tribute made up of local products and performing certain ritual ceremonies, notably the « kowtow » (three genuflections and nine prostrations). They also demanded the Emperor’s investiture of their leaders and adopted the Chinese calendar. In addition to China, they included Japan, Korea, Vietnam, Thailand, Indonesia, the Ryükyü Islands, Laos, Myanmar and Malaysia.

Paradoxically, while occupying a central cultural status, the tributary system offered its vassals the status of sovereign entities, enabling them to exercise authority over a given geographical area.

The Emperor won their submission by showing virtuous concern for their welfare and promoting a doctrine of non-intervention and non-exploitation. Indeed, according to historians, in financial terms, China was never directly enriched by the tributary system. In general, all travel and subsistence expenses for tributary missions were covered by the Chinese government. In addition to the costs of running the system, the gifts offered by the Emperor were generally far more valuable than the tributes he received. Each tributary mission was entitled to be accompanied by a large number of merchants, and once the tribute had been presented to the Emperor, trade could begin.

It should be noted that when a country lost its status as a tributary state as a result of a disagreement, it would try at all costs, and sometimes violently, to be allowed to pay tribute again.

The Canton System of 1757

Port of Canton in 1850 with American, French and British trade missions.

The second system concerned foreign, mainly European, powers wishing to trade with China. This involved the port of Guangzhou (then called Canton), the only port accessible to Westerners.

This meant that merchants, notably those of the British East India Company, could dock not in the port but off the coast of Canton, from October to March, during the trading season. It was in Macao, then a Portuguese possession, that the Chinese provided them with permission to do so. The Emperor’s representatives would then authorize Chinese merchants (hongs) to go on board to trade with foreign ships, while instructing them to collect customs duties before they left.

This way of trading expanded at the end of the XVIIIth century, particularly with the strong English demand for tea.

In fact, it was Chinese tea from Fujian that American « insurgents » threw into the sea during the famous « Boston Tea Party » in December 1773, one of the first events against the British Empire that sparked off the American Revolution.

Products from India, particularly cotton and opium, were exchanged by the East India Company for tea, porcelain and silk.

The customs duties collected by the Canton system were a major source of revenue for the Qing dynasty, even though it banned the purchase of opium from India. This restriction imposed by the Chinese Emperor in 1796 led to the outbreak of the Opium Wars, the first as early as 1839.

At the same time, rebellions broke out in the 1850-60s against the weakened Qing reign, coupled with further wars against hostile European powers.

Sacking of the Summer Palace by the British and French in 1860.

In 1860, the former Summer Palace (Yuanming Park), with its collection of pavilions, temples, pagodas and libraries – the residence of the Qing dynasty emperors 15 kilometers northwest of Beijing’s Forbidden City – was ravaged by British and French troops during the Second Opium War.

This assault goes down in history as one of the worst acts of cultural vandalism of the XIXth century. The Palace was sacked a second time in 1900 by an eight-nation alliance against China.

Today, a statue of Victor Hugo and a text he wrote against Napoleon III and the destruction of French imperialism can be admired there, as a reminder that this was not the work of a nation, but of a government.

By the end of the First World War, China had 48 open ports where foreigners could trade according to their own jurisdictions.

The 20th century was an era of revolution and social change. The founding of the People’s Republic of China in 1949 led to inward-looking attitudes.

It wasn’t until 1978 that Deng Xiaoping announced a policy of opening up to the outside world in order to modernize the country.

China’s New Silk Roads initiative.

In the XXIst century, thanks to the One Belt (economic) One Road (maritime) Initiative launched by President Xi Jingping, China is re-emerging as a major world power offering mutually beneficial cooperation in the service of a better shared future for mankind.

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The hidden lesson of Sugata Mitra’s “Hole-in-the-Wall” experience

There are over a billion Indians. Unfortunately, around half of them are illiterate. Only one in four has access to proper sanitation. Some 350 million Indians live on less than one euro a day. And yet, in a strange paradox, India is also home to some of the world’s most advanced high-tech companies. New Delhi is, in a way, India’s Silicon Valley. And very recently, Indian genius has succeeded in landing a rover on the Moon.

Dr Sugata Mitra.

Scandalized by the lack of access to education for his country’s children living far from urban centers, Dr. Sugata Mitra, an Indian physicist turned educational technology researcher, has been conducting a series of experiments since 1999, dubbed « The Hole-in-the-Wall », whose astonishing results are calling into question the foundations of conventional pedagogy.

“In early 1999”, writes Mitra, “colleagues and I sunk a computer into the opening of a wall near our office in Kalkaji, New Delhi. The area was located in an expansive slum, with desperately poor people struggling to survive.”

The screen was visible from the street, and the PC was available to anyone who passed by and all the people living “on the other side of the wall”. The computer had online access and a number of programs that could be used, but no instructions were given for its use. In principle, the children in this neighborhood could neither read nor write, and spoke a Tamil dialect. So, objectively speaking, the chances of them being able to cope with the computer were almost nil.

Fortunately, in the real world, things are different. Barely eight minutes after the computer had been installed, a young boy who had never seen a television screen in his life came up to sniff it out and explore the strange intruding object.

Asked if he could touch the screen, Mitra replied, « It’s on your side of the wall. » The rule was that everything on their side of the wall could be touched. The child soon realized that by moving the mouse in a certain direction, something moved on the screen in a similar way. Excited by what he had discovered, he immediately called his friends and showed them what he could do.

Typically, in the « Hole in the Wall » experiment, only one child operates the computer. He is surrounded by a first group of three others who give him advice. A second group of around sixteen children completes the team, who also interact with the child handling the equipment. Their advice is often less sound, or even wrong, but they learn too.

In hardly a few months, these kids were able to learn up to 200 English words. Although they couldn’t always pronounce them correctly, they understood their meaning and were able to interact with the computer. « You left us these machines that only speak English, so we had to learn it, » they said. Most of them succeeded in learning to navigate, play games and to draw pictures with a given application. What’s more, they have no trouble exchanging emails, and much more besides.

By repeating the experiment in several poor Indian towns, with boys as well as girls, Mitra, suspected of charlatanism by those who felt challenged by what his experience revealed, managed to dispel initial doubts that « someone » had secretly offered training to the children in advance.


What to conclude?

If the results are astonishing, they are often misinterpreted, with everyone, including Mitra himself, trying to demonstrate his or her own pre-established theory. You be the judge.

For Europeans, the experiment itself is considered borderline acceptable. Using children as “guinea pigs” without their parents’ permission is unethical by European standards. And isn’t bringing technology to the poor and thinking that everything will take care of itself one of those practices tinged with neo-colonialism that the World Bank ranks among the worst approaches to educational technology?

For their part, the gurus of Silicon Valley and GAFAM (Google, Apple, Facebook, Amazon, Microsoft) were jubilant! They’ve been telling us for years: just give every child a computer (which they manufacture and control) and they’ll educate themselves! Really?

Remember the « One Laptop per Child » project launched a decade ago, to provide inexpensive solar-powered laptops and tablets to children in the poor countries? Without wishing to criticize the good will of its promoters, let’s just say that simply making computers available has not proved a promising approach. A recent evaluation of the project in Peru confirms this.

For his part, Mitra, whose goodwill cannot be questioned, came to the conclusion that experience shows that primary education can, at least in part, pretty much “take care of itself,” if the pupils are offered a « non-invasive education » environment.

Mutual Education

Dr. Mitra, unfortunately, seems to be missing the major point of what his experience brilliantly demonstrates.

I explain:

In France, after having been an enthusiastic proponent of computers for all, author and high school teacher Vincent Faillet has also come to believe that giving every child a tablet is not the right approach. With good reason, he points out that it’s not the computer, tablet, or screen that teaches children, but the human interaction among students:

« Peer-to-peer learning, as defined by Sugata Mitra and which has amazed many pedagogues, » writes Faillet, « is in reality nothing more and nothing less than a modern, spontaneous form of ‘mutual education’. It’s striking to note that, despite the centuries that separate these observations, we find a constant pattern: children in a learning situation, grouped around a common screen for interaction, be it a box of sand, a blackboard or a computer screen. The idea of interaction is essential. As Sugata Mitra himself says, students don’t get the same results if there were to be one computer per child. You always require several children for ONE computer, in the same way that several children in mutual schools gather around the same blackboard. » (La Métamorphose de l’Ecole, Vincent Faillet, 2017)

(For more on the “Mutual Tuition” methods of Carnot, Bell and Lancaster, see the author’s article on artkarel.com website)

The experiment is obviously promising for remote and poor regions, provided we understand what has just been said. What is certain is that the experience reminds the inhabitants of the North of the ineffectiveness of their pedagogical practices, and the high level of passivity engendered by our educational systems.

After the eradication of Lazare Carnot’s cherished « mutual teaching » methods in 1815, Jean-Baptiste de La Salle’s « simultaneous » method triumphed. The master teaches. His authority is unquestionable. As if at mass, the pupils stand still, remain religiously silent and obey.

In 2004, Hole-in-the-Wall Education Ltd., was founded, exporting Mitra’s idea to Cambodia and Africa. Mitra has also applied his method in England. Also there, the spectacular results caused quite a stir: students who teach each other, he claims, are 7 years ahead of their academic peers. As long as they are part of a mutual teaching process, the Internet, tablets and smartphones will find their rightful place as mere tools at the service of the teacher, and not destined to replace him or her.

Pupils as young as 8 or 9 who are allowed to search the internet to prepare for the General Certificate of Secondary Education (GCSE), not only pass the test, but still remember what they have learned when tested again three months later. We’ve even seen 14-year-olds pass baccalaureate-level tests at Newcastle University. Will they find jobs commensurate with their skills in the Global West ?

In the following excerpt,
Dr Mitra describes his findings:

“Certain common observations from our experiments emerged, suggesting the following learning process occurs when children self-instruct in computer usage:

1. Discoveries tend to happen in one of two ways: When one child in a group already knows something about computers, he or she shows off those skills to the others. Or, while the others watch, one child explores randomly in the GUI (Graphical User Interface) environment until an accidental discovery is made. For example, the child may discover that the cursor changes to a hand shape at certain places on the scre


2. Several children repeat the discovery for themselves by asking the first child to let them try it.


3. While in Step 2, one or more children make more accidental or incidental discoveries.


4. All the children repeat all the discoveries made and, in the process, make more discoveries. They soon start to create a vocabulary to describe their experiences.


5. The vocabulary encourages them to perceive generalizations, such as, « When you click on a hand-shaped cursor, it changes to the hourglass shape for a while and a new page comes up. »


6. They memorize entire procedures for doing something, such as how to open a painting program and retrieve a saved picture. Whenever a child finds a shorter procedure, he or she teaches it to the others. They discuss, hold small conferences, make their own timetables and research plans. It is important not to underestimate them.


7. The group divides itself into the « knows » and the « know-nots, » much as they might divide themselves into « haves » and « have-nots » with regard to their possessions. However, a child that knows will share that knowledge in return for friendship and reciprocity of information, unlike with the ownership of physical things, where they can use force to get what they do not have. When you « take » information, the donor doesn’t « lose » it!


8. A stage is reached when no further discoveries are being made and the children occupy themselves with practicing what they have already learned. At this point, intervention is required to plant a new seed for discovery (…) Usually, a spiral of discoveries follows and another self-instructional cycle begins.”


Source: edutopia.org



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« Mutual tuition »: historical curiosity or promise of a better future?

Bas-relief of Gutenberg statue in Strasbourg, by David d’Angers.


By Karel Vereycken, July 2023, PARIS.

1. Introduction
2. Learning and teaching at the same time, a precious joy
3. Precedents:
A. In India
B. In France
4. Gaspard Monge’s brigades
5. Andrew Bell
6. Joseph Lancaster
7. Mutual Tuition, how it works
A. The class room
B. Teachers and monitors
C. A day at a mutual school
D. Progress according to each pupil’s knowledge
E. Tools
F. Command
8. Bellists vs. Lancasterians
9. France adopting Mutual Tuition
10. Lazare Carnot takes the helm
11. Mutual tuition and choral music
12. The rue Saint-Jean-de-Beauvais pilot project
13. Jomard, Choron, Francœur and elementary knowledge
14. Going Nationwide
15. Critique
16. Mechanistic drift?
17. Death of mutual tuition in France
18. Conclusion
19. Short list of books and texts consulted


« Answer, my friends: it must be sweet for you
To have as your only mentors children like yourselves;
Their age, their mood, their pleasures are your own;
And these victors of one day, tomorrow vanquished by others,
Are, in turn, adorned with modest ribbons,
Your equals in your games, your masters on the benches.
Mute, eyes fixed on your happy emulators,
You are not distracted by the fear of ferulas;
Never an avenging whip, frightening your spirits,
Makes you forget what they taught you;
I listen badly to a fool who wants me to fear him,
And I know much better what a friend teaches me. »



Victor Hugo, Discours sur les avantages de l’Enseignement mutuel, 1817.

1. Introduction

Teaching reading and writing to 1,000 children in the same room, without a teacher, without school books, without paper and ink, is clearly impossible. And yet, it has been imagined and put into practice with great success!
Shh! we mustn’t talk about it, because it could give some people ideas, and not just in emerging countries!

That such a challenge could be taken up could only worry the oligarchy and its servants, who since the dawn of time have been mandated to train an « elite » (the high priests of knowledge, « experts » and other know-it-alls) who reproduce in a vacuum at the top, while ensuring that the great mass of people below are educated just enough to be able to deliver parcels, pay their taxes, abide by the rules defined by the top, and above all, not make (too) much of a mess.

And yet, as Hippolyte Carnot, Minister of Public Instruction in the Second Republic, understood long before us, without a republican education – in other words, without genuine citizen training from kindergarten onwards – universal suffrage often becomes a tragic farce capable of producing monsters.

In the early 19th century, « mutual tuition », (sometimes referred to as the English Monitorial System, also known as Madras System or Lancasterian System), spread like wildfire across Europe and then the rest of the world including the United States of America.


If the teacher addresses a single pupil, it’s the individual mode (as in the case of the preceptor); if he addresses an entire class, it’s the simultaneous mode; if he instructs some children to teach others, it’s the mutual mode. The combination of simultaneous and mutual modes is called mixed mode.


Mutual tuition quickly fell victim to personal quarrels and ideological, political and religious issues. In France, it was seen as an aggression by religious congregations who practiced « simultaneous teaching », codified as early as 1684 by Jean-Baptiste de La Salle : classes by age, division by level, fixed and individual places, strict discipline, repetitive and simultaneous work supervised by an inflexible master.

With the formation of small groups where pupils teach each other and move around the classroom, mutual teaching immediately gave rise, rather foolishly, to the fear of an ass-over-head world straight out of a Hieronymus Bosch painting. What kind of world are we in if the pupil teaches the teacher? the child the parent? the faithful the priest? the citizen the government ! Without a clear leader, aren’t we lost ?

In 1824, Pope Leo XII (not to be confused with the benevolent Leo XIII), the « Pope of the Holy Alliance », a fierce supporter of order and suspect of a vast Protestant plot against the Vatican, forbade such teaching, believing it to « weaken the authority » of both teachers and political and religious authorities.

In France, where in the years following the 1830 revolution over 2,000 mutual schools existed, mainly in towns, in competition with denominational schools, François Guizot, Louis-Philippe’s minister and initially a promoter of broad public education, had them closed down.

2. Learning and teaching at the same time,
a precious joy

Prince Charles Louis of the Palatinate with his Tutor Wolrad von Plessen in Historical Dress, painting of Jan Lievens.

Today, « tutoring » is enjoying a revival in the context of school and vocational training. It is a process of « assistance by more experienced subjects to less experienced subjects, likely to enrich the latter’s acquisitions ».

Tutoring between children, in particular between children of different ages, is encouraged from nursery school right through to university, with the institutionalization of methodological tutoring at undergraduate level. Since the 1980s, elementary and secondary schools in France and abroad have seen the development of numerous tutoring experiments.

In reality, tutoring is no more than the pale heir to the mutual tuition system developed in England and then France in the 19th century.

Hence, the future of humanity depends on an exclusively human faculty: the discovery of new universal physical principles, often totally beyond the limits of our sensory apparatus, enabling Man to increase his capacity to transform the universe to qualitatively improve his lot and that of his environment. A discovery is never the result of the sum or average of opinions, but of an individual, perfectly sovereign act. Are we able to organize our society so that this « sacred » creative principle is cherished, respected and cultivated in any newborn child?

Because, without the socialization of this discovery, it will be useless. The history of mankind is therefore, by its very nature, the history of « mutual tuition ».

Look what I discovered !

Is not the greatest pleasure of those who have just made a discovery – and this is natural for children – to share, with a view to a shared future, not only what he or she has just discovered, but the joy and beauty that every scientific breakthrough represents? And when those who discover teach and those that teach, discover, the pleasure is immense. So let’s give our professional teachers the time they need to make discoveries, for the quality of their teaching will be enhanced!

Precedents:

A. In India

In 1623, the Italian explorer Pietro Della Valle (1586-1652), after a trip to « Industan » (India), in a letter dispatched from Ikkeri (a town in south-west India), reports having seen boys teaching each other how to read and write using singing :

Pietro Della Valle


« In order to inculcate it perfectly in their memory, to repeat the previous lessons that had been prescribed to them, lest they forget them, one of them would sing in a certain musical tone a line from the lesson, such as two and two make four. After all, it’s easy to learn a song.

« While he sang this part of the lesson to learn it better, he wrote it down at the same time, not with a pen, nor on paper. But to spare him and not spoil it unnecessarily, they marked the characters with their fingers on the same floor where they were sitting in a circle, which they had covered for this purpose with very loose sand. After the first of these children had written in this way while singing, the others sang and wrote the same thing all together

« (…) When I asked them who (…) corrected them when they missed, given that they were all schoolboys, they answered me very reasonably, that it was impossible that a single difficulty should stop them all, four at the same time, without being able to overcome it and that for the subject they always practiced together so that if one missed, the others would be his teachers.« 


In Della Valla‘s report, we can already identify some of the basic principles of mutual tuition, notably the simultaneous learning of reading and writing, the use of sand for writing exercises to avoid wasting paper, which is scarce and very expensive, a group lesson given by a teacher, followed by work in sub-groups in which pupils learn to self-regulate, and finally, an integration of knowledge which, thanks to the use of song, will facilitate memorization.

B. In France

Charles Demia.

In Lyon, the priest Charles Démia, was one of the precursors of mutual tuition, which he put into practice in the « petites écoles » for poor children he founded and theorized as early as 1688. According to the Nouveau dictionnaire de pédagogie et de l’instruction primaire:

« Démia introduced what later came to be known as mutual tuition into the classroom: he recommended that a certain number of officers be chosen from among the most capable and studious pupils, some of whom, under the name of intendants and decurions, would be responsible for supervision, while the others would have to have the master’s lessons repeated, correct pupils when they made mistakes, guide the hesitant hand of ‘young writers’, etc. » In order to make simultaneous teaching possible, Démia’s idea of ‘mutual teaching’ was based on the principle of ‘teaching to one another’. To make simultaneous teaching possible, the author of the regulations divides the school into eight classes, to be taught in turn by the master; each of these classes can be subdivided into bands ».


In Paris, as early as 1747, mutual education was practiced with great success in a school of over 300 pupils, established by M. Herbault, at the Hospice de la Pitié, in favor of the children of the poor. Unfortunately, the experiment did not survive its founder.

In 1772, the ingenious charity of Chevalier Paulet conceived and carried out the project of applying a similar method to the education of a large number of children, left without support in society by the death of their parents.

4. Gaspard Monge’s « brigades »

Gaspard Monge.


Finally, as recounted in his biography of Gaspard Monge by his most brilliant pupil, the astronomer François Arago (1786-1853), himself a close friend of Alexander von Humboldt, it was at the École Polytechnique that Monge perfected his own system of mutual tuition and tutoring.

Finding it unacceptable to have to wait three years for the first engineers to graduate from the Ecole Polytechnique, Monge decided to speed up student training by organizing « revolutionary courses », an accelerated training program lasting three months for those in charge of teaching to the others. To achieve this, he perfected the concept of « chefs de brigades », a technique he had already successfully tested at the Mézières engineering school.

Elèves de l’Ecole Polytechnique, bas-relief du Panthéon par David d’Angers.
Graduates of the Ecole Polytechnique in front of Ecole du genie miltaire of Mézières.


François Arago:
« The brigade leaders, always working with small groups of students in separate rooms, were to have the extremely important task of ironing out difficulties as they arose. Never had a more skilful combination been devised to remove any excuse for mediocrity or laziness.

« This creation belonged to Monge. At Mézières, where the engineering students were divided into two groups of ten, and where, in fact, our colleague acted for some time as permanent brigade leader for both divisions, the presence in the classrooms of a person who was always in a position to overcome objections had produced results that were too fortunate for this former repetiteur, in drafting the developments attached to Fourcroy’s report, not to try to endow the new school with the same advantages.

« Monge did more; he wanted the 23 sections of 16 students each, of which the three divisions were to be composed, to have their brigade leader, as in ordinary times, following the revolutionary lessons, and at the opening of the courses of the three degrees. In a word, he wanted the School, at its beginning, to function as if it had already been in existence for three years.

« Here’s how our colleague achieved this seemingly unattainable goal. It was decided that 25 students, chosen by competitive examination from among the 50 candidates who had received the best marks from the admission examiners, would become brigade leaders of three divisions of the school, after receiving special instruction separately. In the mornings, the 50 young people, like all their classmates, attended revolutionary classes; in the evenings, they were brought together at the Hôtel Pommeuse, near the Palais-Bourbon, and various teachers prepared them for the functions they were destined to perform. Monge presided over this scientific initiation with infinite kindness, ardor and zeal. The memory of his lessons remains indelible in the minds of all those who benefited from them.

Arago then quotes Edme Augustin Sylvain Brissot (1786-1819), son of the famous abolitionist, , one of the 50 students, who reported : « It was there that we began to get to know Monge, this man so kind to youth, so devoted to the propagation of science. Almost always in our midst, he followed lessons in geometry, analysis and physics with private discussions where we found even more to gain. He became a friend to each and every one of the students at the Ecole provisoire, joining in the efforts he was constantly provoking, and applauding, with all the vivacity of his character, the successes of our young minds ».


While mutual teaching is fully practiced, the total dedication of a master as devoted as Monge completes what otherwise becomes nothing more than a « system ».

5. Andrew Bell

Andrew Bell in 1825.

It was a Scotsman, the Anglican clergyman Andrew Bell (1753-1832), who claimed the paternity of mutual tuition, which he theorized and practiced in India, at the head of the Egmore Military Asylum for Orphans (Eastern India), an institution created in 1789 to educate and instruct the orphans and destitute sons of the European officers and soldiers of the Madras army.

After 7 years there, Bell returned to London and, in 1797, wrote a report to the East India Company (his employer in Madras) on the incredible benefits of his invention.

Russian physician, naturalist and inventor Iosif Khristianovich (Joseph) Hamel (1788-1862), a member of the Russian Academy of Sciences, was commissioned by Alexander I, Emperor of Russia, to write a full report on this new type of education, which was then being discussed throughout Europe.

Madras School of Andrew Bell.

In Der Gegenseitige Unterricht (1818), he reports what Bell wrote in one of his writings: « It happened at this time, that one morning as I was taking my usual walk, I passed a school of young Malabar children, and saw them busy writing on the ground. The idea immediately occurred to me that perhaps the children at my school could be taught the letters of the alphabet by tracing on the sand. I immediately went home and ordered the teacher of the last class to carry out what I had just arranged. Fortunately, the order was very poorly received; for if the master had complied to my satisfaction, it is possible that all further development would have been stopped, and with it the very principle of mutual education… »

Mutual education was coldly received in England, but eventually won over Samuel Nichols, one of the school leaders at St. Botolph’s Aldgate, London’s oldest Anglican Protestant parish. Bell’s precepts were implemented with great success, and his method was taken up by Dr. Briggs when he opened an industrial school in Liverpool.

6. Joseph Lancaster

Joseph Lancaster.

In England, it was Joseph Lancaster (1778-1838), a twenty-year-old London schoolteacher, who seized upon the new way of teaching, perfected it and generalized it on a large scale. (See text of his 1810 booklet)

In 1798, he opened an elementary school for poor children in Borough Road, one of London’s poorest suburbs. Education was not yet totally free, but it was 40% cheaper than other schools in the capital. Lacking money, Lancaster did everything in his power to drive down the costs of what was becoming a veritable « system »: use of sand and slate instead of ink and paper (Erasmus of Rotterdam reported in 1528 that in his day, people wrote with a kind of awl on tables covered in fine dust); boards reproducing the pages of school books hung on the walls to avoid having to buy books; auxiliary teachers replaced by pupils to avoid paying salaries; increase in the number of pupils per class.

The Lancasterian School in Birmingham, founded in 1809


By 1804, his school had 700 pupils, and twelve months later, a thousand. Lancaster, getting deeper and deeper into debt, opened a school for 200 girls. To escape his creditors, Lancaster left London in 1806, and on his return was jailed for debt. Two of his friends, dentist Joseph Foxe and straw hat maker William Corston, repaid his debt and founded with him « The Society for the Promotion of the Lancasterian System for the Education of the Poor ».

Other Quakers stepped in with support, notably abolitionist William Wilberforce (1759-1833), whom the french sculptor David d’Angers depicted alongside Condorcet and Abbé Grégoire on his famous monument commemorating Gutenberg in Strasbourg.

From there, as Joseph Hamel recounts in his 1818 report, the new approach spread to the four corners of the world: England, Scotland, France, Prussia, Russia, Italy, Spain, Denmark, Sweden, Poland and Switzerland, not forgetting Senegal and several South American nations such as Brazil and Argentina and of course, the United States of America. Mutual Tuition was adopted as the official pedagogy in New York City (1805), Albany (1810), Georgetown (1811), Washington D.C. (1812), Philadelphia (1817), Boston (1824) and Baltimore (1829), and the Pennsylvania legislature considered statewide adoption.

First Mutual Tuition School in New York.

7. Mutual tuition, how does that works ?

The fundamental principle of « mutual tuition », particularly relevant to elementary school, is reciprocity of instruction between pupils, with the more able serving as teacher to the less able. From the outset, everyone progresses gradually, regardless of the number of pupils.

Bell and Lancaster, and their French disciples, postulated: the diversity of faculties, the inequality of progress, the rhythms of comprehension and acquisition. This led them to divide the school into different classes according to subjects and children’s level of knowledge, with age playing no part in this classification. Schoolchildren thus brought together take part in the same exercises. Their study program is identical in content and methods.

If the number of pupils in a division is too high in a particular subject – reading or arithmetic, for example – sub-groups are formed, which progress in parallel, while the teaching methods and materials remain identical.

So what does a school under the new system look like?

A. The classroom

Whatever the number of pupils – around a 100 in French villages, close to a 1000 in the Lancaster school in London, 200 in Parisian schools – they are grouped together in one single rectangular room with no partitions.

Jomard, who was extraordinarily active and prolific in the early years of the mutual education system, set desirable standards for class sizes ranging from 70 to 1,000 pupils.

For 350 pupils, for example, he indicated the need for a room 18 m long by 9 m wide (graphic).

In England and the French countryside, a barn was often used for the new school. In France, a large number of religious buildings have been disused since the revolutionary period, and meet the required standards perfectly. Many mutual schools were built in these buildings.

B. « Masters » and « monitors »

A day of mutual tuition, as proposed by a school in Alsace.

The mutual method divided responsibility for teaching between the « master » and students designated as « monitors », considered « the linchpin of the method ».

As Bally reminded us as early as 1819: « The basis of mutual teaching rests on the instruction communicated by the strongest pupils to those who are weaker. This principle, which is the merit of this method, required a very special organization to create a reasonable hierarchy, which could contribute in the most effective way to the success of all. »

Each day, in a dedicated « classroom » reserved for instructors, the master imparts knowledge and provides his assistants with technical advice on the proper application of the method. During the course of the day, he remains in charge of the 8th class, and as such is responsible for conducting their exercises. He conducts periodic, monthly or occasional examinations in the classes, and may decide to change classes. Finally, it is he who, at the final stage, distributes punishments and rewards.

C. A day at a mutual school

Thus, on a platform, the teacher’s desk with a large drawer where money, reward tickets, registers, writing templates, whistles and children’s notebooks are kept.

Behind the teacher, next to the clock – an essential instrument for organizing teaching life – is a blackboard on which are written sentences and writing models.

At the foot of the platform, benches are attached across the desks, of different sizes, in the middle of the room. The first tables, which are not inclined, have sand on which small children trace signs, while the other tables have slates; on the last of these there are lead inkwells and paper, and chopsticks to indicate words or letters to be read.

At the end of each table are « dictation tables » and telegraphic signals indicating the lesson’s moments, such as « COR » for « correction » or « EX » for « examination of work ». Semicircular table models were then proposed to facilitate the work of the instructors.

D. Progress according to each person’s knowledge

Mutual Tuition school of the rue Saint-Jean-de-Beauvais (Paris),1820, Marlet, lithograpy.

Initially, the mutual school program was limited to the 3 fundamental disciplines of reading, writing and arithmetic, and to the teaching of religion. Geography, grammar, writing, singing and linear drawing were soon added. The instrumental disciplines (music) are taught together, rather than in succession, as is customary in other schools. Pupil groupings are flexible, mobile and differentiated, depending on the nature of the subjects studied and the activities practised in the discipline.

Each subject matter taught in mutual schools is based on a precise, codified curriculum. This program is divided into 8 hierarchical levels, which must be covered in succession. Each degree is called a « class », and this is how we speak of the 8 classes of writing or arithmetic.

The term « class » refers only to acquisitions and knowledge, the 1st class being that of beginners and the 8th that of the completion of the school curriculum. The pace of learning and acquisition varies from student to student and from subject to subject.

Thus, after six months’ attendance, pupil « X » may find himself in 4th class reading, 5th class writing and 2nd class arithmetic. As we said, class assignment is decided on the basis of knowledge level, not age.

But this initial allocation is accompanied, within each class and in each subject, by the constitution of restricted groups established according to the activities to be practiced. In arithmetic, for example, written work is done on the slate. This takes place seated on benches reserved for this purpose, with a maximum of 16 to 18 students per bench, according to the standards established by Jomard.


Oral exercises, in reading or arithmetic, or with the aid of a blackboard, arithmetic or linear drawing, are done standing up, in groups of no more than 9, with pupils standing side by side, forming a semi-circle. Hence the name given to this kind of activity: « circle work ».

So, in a mutual school with 36 students in 3rd arithmetic class, bench work will be done in two groups with two monitors, and blackboard exercises with 4 groups and 4 monitors. Class sizes can therefore vary from school to school and throughout the year, the only limitation being the size of the premises.

D. Tools

Low costs are one of the preoccupations of the new teaching method. Furniture was therefore very basic.

  • Benches and desks are made of ordinary planks, fastened with heavy nails. The benches have no backrests: a superfluous luxury!
  • The platform is clearly elevated: about 0.65 m. Several steps lead up to the teacher’s desk. The master reigns over the children’s community as much by his material position as by his personal ascendancy.
  • The clock is noted as « indispensable », as teaching and maneuvers are strictly timed.
  • Half-circles, also known as reading circles, give mutual schools a typical and original appearance. These are usually semi-circular iron hangers that can be raised or lowered at will. Sometimes, the materialization is simply applied to the floor: grooves, large nails or arched strips.
  • Blackboards were systematically used for linear drawing and arithmetic. They are 1 m long and 0.70 m wide, with a movable meter at the top. They are placed inside each semicircle.
  • Telegraphs. When work takes place at the tables, such as writing, signals are used to link and communicate between the general monitor and the individual monitors: these are the telegraphs. A planchette, attached to the upper end of a round stick 1.70 m high, is installed at the first table of each class, thanks to two holes drilled at the top and bottom of the desk. On one side is the class number (1 to 8); on the other, EX (examen), replaced around 1830 by COR (correction). These telegraphs are portable. They could be moved if the number of students increased or decreased. In this way, the master and the general monitor have the exact composition of each class and the number of tables occupied by each. As soon as an exercise is completed, the class monitor turns the telegraph and presents the EX side to the desk. All monitors do the same. The general monitor gives the order to proceed with inspection and any corrections. Once these have been completed, the class number is presented again. And the exercises resume. Next to the telegraphs are the occasional board stands.
  • Monitor rods. These are used to indicate on tables the letters or words to be read, the details of operations to be carried out, and the lines to be reproduced. In rural schools, these are generally only available thanks to the good will and ingenuity of the teachers, who obtain them from nearby woods.
  • Sand (for writing) and then slates are constantly used in all subjects. This was an essential innovation in the mutual mode, as other schools did not use them.
  • Boards instead of books. The first reason is financial, as a single board is sufficient for up to nine pupils. But the pedagogical reasons are no less important. The format makes them easy to read and store. The concern for presentation and highlighting certain characters is accompanied by a different layout from that of the textbooks.
  • Books are reserved for the eighth grade, as are nibs, ink and paper.
  • Registers, currently in use, ensure sound management of the schools. One in particular deserves special mention: « Le grand livre de l’école » (the school’s ledger), which is first and foremost a registration book. It records the child’s surname, first name and age, as well as the parents’ occupation and address. The teacher enters the precise date of entry and exit of each child, in each class, including music and linear drawing.

E. Communication

To ensure that dozens or hundreds of pupils are led and developed correctly, and to avoid wasting time, those in charge of mutual education have planned precise, rapid, immediately comprehensible orders:

  • The voice is rarely used. Injunctions transmitted in this way are generally addressed to the instructors, sometimes to a specific class;
  • The bell attracts attention. It precedes information or a movement to be executed;
  • The whistle has a dual function. It is used to intervene in the general order of the school, « to impose silence », for example, and to signal the start or end of certain exercises during the lesson, « to have the pupils say by heart, to spell, to stop reading ». Only the teacher is authorized to use them.
  • As for hand signals, they have been used extensively. Intended to evoke the act or movement to be accomplished, they attract the eye and should bring calm to the community.

« Bellists » versus « Lancasterians »

While the two schools, Bell’s and Lancaster’s, were very close to each other in terms of content, methods and organization, they clashed violently over the role and place of religious education. All other program-related differences are a matter of taste, habit or local circumstance.

As Sylvian Tinembert and Edward Pahud point out in « Une innovation pédagogique, le cas de l’enseignement mutuel au XIXe siècle » (Editions Livreo-Alphil, 2019), Lancaster, as a follower of the dissident Quaker movement,

« recognized Christianity but professed that belief belonged to the professional sphere and that each person was free in his or her convictions. He also advocates egalitarianism, tolerance and the idea that, in this country, there is such a variety of religions and sects that it is impossible to teach all doctrines. Consequently, it is necessary to remain neutral, to limit teaching to the reading of the Bible, avoiding any interpretation, and to leave fundamental religious instruction to the various churches, ensuring that pupils follow the services and teachings of the denomination to which they belong ».

Nevertheless, Bellists and Lancasterians had their differences. For the Lancasterians, Bell had invented nothing and was merely describing what he had seen in India. For the Bellists, furious that Lancaster found a positive response from certain members of the Royal family, Lancaster was portrayed as the devil, an « enemy » of the official Anglican religion, who admitted children of all origins and denominations to his schools !

9. France adopting mutuel tuition


In London, the Lancaster association was joined by a number of high-ranking personalities, both English and foreign. These included Geneva physicist Marc Auguste Pictet de Rochemont (1752-1825), French paleontologist Georges Cuvier (1769-1832) and his compatriots, agronomist Charles Philibert de Lasteyrie (1759-1849) and Lancaster’s future translator into French, archaeologist Alexandre de Laborde (1773-1842).

After the peace of 1814, many countries – notably England, Prussia, France and Russia – bled dry by the Napoleonic wars, which had resulted in the loss of thousands of young teachers and qualified executives on the battlefields, made education their top priority, not least to keep up with the industrial revolution that was coming to shake them to their foundations.


Added to this is the fact that the number of orphans in Europe has become a major problem for all states, especially as the coffers are empty. To keep street children occupied, schools were needed, many of them to be built with very little money and many teachers… nonexistent. Learning of the resounding success of mutual education, several Frenchmen travelled to England to discover the new method.

Laborde brought back his « Plan d’éducation pour les enfants pauvres, d’après les deux méthodes (du docteur Bell et de M. Lancaster) », and Lasteyrie his « Nouveau système d’éducation pour les écoles primaires ». In 1815, the Duc de la Rochefoucauld-Liancourt (1747-1827) published his book on Joseph Lancaster’s « Système anglais d’instruction ».

Since 1802, Paris had been home to the « Société d’encouragement pour l’industrie nationale », whose Secretary General was linguist Joseph-Marie de Gérando (1772-1842), and of whom Laborde was a founder together with Jean-Antoine Chaptal (1752-1832). Unsurprisingly, Gérando had been raised by the Oratorians and was initially destined for the Church.

On March 1, 1815, Lasteyrie, Laborde and Gérando proposed to the Société d’Encouragement the creation of a new association whose purpose would be « to gather and spread enlightenment likely to provide the lower classes of the people with the kind of intellectual and moral education most suited to their needs ».

Gérando

In his report presented to the Société d’Encouragement on March 20, 1815, Gérando proposed that the newly-appointed Minister of the Interior, Lazare Carnot (During les Cents-Jour, i.e. between March 20-June 22, 1815), be asked to promote « the adoption of procedures likely to regenerate primary education in France », i.e. the system of mutual tuition.

Political and social interests were not the only ones at stake. The French economy, too, was much to benefit from the development of education. « What can we expect, » said Carnot in 1815, « if the man who drives the plough is as stupid as the horses that pull it?« 

Gérando also proposed the creation of an association dedicated specifically to its propagation, underlining the advantages of the new approach: economic advantage first, since it involves « employing the children themselves, in relation to each other, as teaching aids », and that a single teacher is sufficient for 1,000 pupils; educational advantage second, since it is possible « to teach, in two years, everything that children of inferior conditions need to know, and much more than they learn today by much longer processes »; a moral and social advantage, insofar as children « are imbued from an early age with a sense of duty, a feeling that will one day guarantee their obedience to the law and their respect for the social order ».

The engineer-geographer and polytechnician Edeme-François Jomard (1777-1862), for whom the education of the people is an obligation of society towards itself, said nothing else: « How can we demand that unfortunate people, devoid of all enlightenment, know the social pact and submit to it? Or how can we, without being foolish, count on their invariable and blind submission?« 

The Société d’Encouragement then validated the conclusions of its report by subscribing the sum of 500 francs in favor of the new association, and by deciding that, in addition to its moral influence, it would place at the latter’s disposal the various means of execution that might belong to it.

10. Lazare Carnot at the helm

Statue of Carnot.

Following the Concordat between Napoleon and the Vatican, the Emperor issued a decree on education on August 15, 1808, requiring schools to follow the « principles of the Catholic Church ».

The Frères des Ecoles Chrétiennes (Institute of the Brothers of the Christian Schools), unconditional advocates of the « simultaneous education » theorized by their founder Jean-Baptiste de La Salle (1651-1719), were to take charge of all primary education and train teachers.

Disbanded during the Revolution, the Brothers resumed their functions in 1810. Encouraged to develop to counter the influence of the Jesuits, authorized in 1816 to return to France, they rapidly expanded throughout France.

But the educational situation was pitiful. This is what senior French officials constantly say when they visit the territories annexed by the Empire, notably North Germany and Holland. The comparison with France makes them blush with shame.

In 1810, the naturalist Georges Cuvier wrote in his report:

« We would be hard pressed to convey the effect produced on us by the first elementary school we entered in Holland. Children, teachers, premises, methods, teaching, everything is in perfect order (…) Several prefects have assured us that we would not find a single young boy in their department today who did not know how to read and write. »

Faced with such a contrast, which was not to the conqueror’s advantage, the Imperial University, like ancient Rome, set out to teach the conquered country. In his decree of November 15, 1811, the Emperor decided:

« The council of our Imperial University will present us with a report on the part of the system established in Holland for primary instruction that would be applicable to the other departments of our Empire. »

The Emperor abdicated on April 4, 1814, before any decision had been taken to regenerate the French « petites écoles ». At least the Imperial University’s reports had exposed their misery and drawn public attention to them.

Appointed Minister of the Interior, and therefore in charge of Education during the Cents-Jours, Lazare Carnot, a co-founder of the Ecole Polytechnique, was completely convinced of the potential excellence of « mutual education ».

On April 10, 1815, he set up a Council for Industry and Charity, at whose first meeting he himself presented Gérando‘s report;

On April 27, 1815, he submitted a report to the Emperor in which he stated:

Lazare Carnot.

« There are 2 million children in France clamoring for primary education, and of these 2 million, some receive a very imperfect education, while others are completely deprived« .

He then recommended mutual education, whose « purpose is to give primary education the greatest degree of simplicity, rapidity and economy, while also giving it the degree of perfection suitable for the lower classes of society, and also by bringing into it everything that can give rise to and maintain in the hearts of children a sense of duty, justice, honor and respect for the established order ».

Minutes later, Lazare Carnot had the French Emperor sign the following decree:

« Article 1. – Our Minister of the Interior will call upon those persons who deserve to be consulted on the best methods of primary education. He will examine these methods, and decide on and direct the testing of those he deems to be preferable.

« Art. 2 – A primary education test school will be opened in Paris, organized in such a way as to be able to serve as a model and to become a normal school for training primary school teachers.

« Art. 3 – Once satisfactory results have been obtained from the trial school, our Minister of the Interior will propose the appropriate measures to ensure that all departments can rapidly benefit from the new methods that will have been adopted.
« 


For Carnot, contrary to those in the business of Philanthropy, there were not any longer poor or rich children. All citizens of the Republic required and had to be offered the best education available on Earth.

The advisory board set up by Carnot included his friends Laborde, Jomard, Abbé Gaultier, then Lasteyrie and Gérando, i.e. the very promoters or first founders of the Société en formation.
Thus, on June 17, 1815 (the eve of the defeat at Waterloo), the Société pour l’instruction élémentaire (SIE) was born, still under the impetus of Carnot, determined to win the war for education. The SIE’s first general meeting was held on the premises of the Société d’Encouragement. At its head were several protagonists of the ministerial commission: Jomard became one of the secretaries of the new society, alongside Gérando (president), Lasteyrie (vice-president) and Laborde (general secretary).



Before the ordinance of 1816, the number of children attending « petites écoles » was 165,000 throughout France, and by the end of 1820 it had risen to 1,123,000. Almost a factor of 10!

Lazare Carnot clearly wanted to perpetuate the offensive he had launched during the Hundred Days to propagate mutual education throughout the country and, in so doing, to rapidly develop the education of all the children of the Patrie.

After its creation, subscriptions for the SIE poured in, and before long 150 names were added to those of the founders to promote and organize mutual education in France. One of these subscribers was Lazare Carnot.

In its first year of existence, the SIE attracted almost 700 members, initially teachers from the École Polytechnique (Ampère, Berthollet, Chaptal, Guyton de Morveau, Hachette, Mérimée, Thénard), and then some 30 alumni, around half of them from the first graduating class (1794) of the École Polytechnique. Among the latter were a fellow student of Jomard‘s at the geographers’ school, Louis-Benjamin Francœur, professor of higher algebra at the Paris Faculty of Science, comrades from the Egyptian campaign, and Chabrol de Volvic, prefect of the Seine since 1812.

All had but one hope: that Monge’s genial methods of brigades and mutual tuition, which had been diminished and banned once Napoleon turned Polytechnique into a mere military school under the direction of mathematician Pierre-Simon Laplace (1749-1827), could benefit the greatest number and organize a national recovery.

Based in Paris, the SIE extended its operations to the provinces, where it encouraged the founding of subsidiary companies, to which it offered « to send them teachers, to provide them with any information they might need, to give them paintings and books at cost price… ».

Façade of the Société pour l’Instruction Elémentaire, 6, rue du Fouarre, Paris. In the medaillons, from left to right, surrounding « Arts », « Morality » and « Sciences », portraits of some of its major founders and leaders: Larochefoucauld-Liancourt, Francoeur, Jomard and Leroy.


The SIE was also interested in education girls (art. 10). It set up a committee of ladies to look after them: president, Baroness de Gérando; vice-president, Countess de Laborde.

Beyond women, the movement spread to uneducated adults, so numerous at the time. On May 1, 1816, the Society set up a commission for the establishment of adult schools. It was also concerned with barracks, which were to be turned into military schools; prisons, especially children’s prisons; and the colored inhabitants of the colonies, who were to be regenerated by the development of education.

Finally, the members of the Society, attributing a human and general value to their mission, dreamed of founding branches abroad. In November 1818, Laborde called for the creation of a special committee to do so.

Last but not least, the Society did not limit its activities to simply creating schools, but also organized inspections and examinations. It published works (on the mutual tuition method, elementary books on reading, grammar and arithmetic). It distributed awards to the best teachers and instructors.

On November 4, 1891, the bust of Lazare Carnot was inaugurated on the porch pediment of the Société pour l’Instruction Elémentaire, founded in 1815. The sculpture was donated by his grandson, Sadi Carnot (1837-1894), then President of the Republic, who wished to pay tribute to his grandfather’s commitment to the institution.

Following the promulgation of the ordinance of July 29, 1818 authorizing Caisse d’Epargne societies (Saving Banks associations), it asked teachers to entrust part of their salaries to these funds to ensure their retirement; setting an example, it deposited funds with the Caisse for the teachers of the schools it had set up.

Today, the SIE, whose head office is a specially-built building at 6, rue du Fouarre in the 5th arrondissement of Paris, remains the oldest and largest secular primary education association in France.

11. The rue Saint-Jean-de-Beauvais pilot program

As said before, after his trip to England, Jomard, whose portrait appears in a medaillon on the façade of the SIE, also embraced the new system.

In his « reflections on the state of English industry », he wrote, after expressing his enthusiasm for various inventions observed across the Channel: « There is, however, something even more extraordinary: these are schools without teachers: nothing, however, is more real. We now know that there are thousands of children taught without a teacher, and at no cost to their families or the State: an admirable method that will soon spread to France.« 

A graduate of the Ecole Polytechnique, and an exceptionnal scientist who went with Monge to Egypt, Jomard was the ideal man to oversee the material organization of the test school, in particular by arranging for furniture to be made and teaching aids to be printed in accordance with English principles. Jomard also supervised the training of a small nucleus of students – around 20 – as « monitors » before the opening of the school proper in September 1815, planned for 350 students: a modality reminiscent of the « chefs de brigade » of the first graduating class of the École polytechnique.

However, the members of the SIE soon realized that they needed to train trainers. The English therefore welcomed several Frenchmen to train them in mutual teaching. A pastor from the Cévennes, François Martin (1793-1837), after training as a « monitor » in England, was called in by Lasteyrie to run the first mutual school, which opened its doors on June 13, 1815, on rue Saint-Jean-de-Beauvais in Paris, close to Place Maubert. This was the model school that would enable other mutual schools to be opened, thanks to the training of competent « monitors ». The school was soon unable to keep up with demand from hundreds of communes, which were considering sending one of their own to be trained in the new method.

Pastor Paul-Emile Frossard, also trained by the English, took charge of a Parisian school on rue Popincourt, while Bellot ran another. In July, Martin submitted his report. The model class takes in some 15 students destined to become monitors and principals of elementary schools with up to 350 children. Martin reports that in six weeks, they read, write, calculate and « know how to execute the movements that form the gymnastic part of the new education system ».

12. Mutual tuition and music

As Christine Bierre amply documents in her article « La musique et formation du citoyen à l’ère de la Révolution française » (1990):

Alexandre Choron.

« It was at this school on rue Saint-Jean-de-Beauvais, under the direction of a Commission comprising Gérando, Jomard, Lasteyrie, Laborde and Abbé Gaultier, that the application of mutual teaching to the learning of solfeggio and singing was tested for the first time. Alexandre Choron (1771-1834), who since 1814 had opened two music schools for boys and girls, was also a member of the Commission. Not surprisingly, it was on the initiative of Baron de Gérando that the idea of introducing singing into primary education was adopted. When Monsieur le baron de Gérando proposed the introduction of elementary singing in primary schools’, says Jomard in a report presented to the Board of Directors of the Société pour l’Enseignement mutuel, ‘you were all struck by the correctness of the views developed by our colleague (…) It showed the happy influence that such a practice could have, and the real connection that exists between the proper use of song and the perfecting of morals, the ultimate goal of instruction and of all our efforts. Not only was the application of mutual instruction to music revolutionary in itself, but what was equally revolutionary was the fact that children were learning to read and write, almost as intensively. Children studied singing, for four to five hours a week! »

In fact, it was Lazare Carnot himself who wanted to introduce music into the mutual education schools. To this end, he met several times with musician Alexandre Choron (1771-1834), who brought together a number of children and had them perform in his presence several pieces learned in very few lessons. Carnot also was acquinted with Guillaume-Louis Bocquillon, known as Wilhem (1781-1842) for ten years. He saw the possibility of using him to introduce singing into schools, and together they visited the one on rue Saint-Jean-de-Beauvais, a free pilot school for mutual education in Paris open to three hundred children.

Michael Werner‘s recent article, « Musique et pacification sociale, missions fondatrices de l’éducation musicale (1795-1860) », echoes and confirms the groundbreaking research initiated by Christine Bierre in 1990.

Wilhem

Excerpt:
« One of the fields in which the results of mutualist pedagogy are clearly visible is musical education. Several players played a decisive role here, and deserve a brief mention.

The first is Guillaume-Louis Bocquillon, known as Wilhem (1781-1842). The son of an officer and himself from a military background, he then devoted himself to musical composition and teaching, particularly at the Lycée Napoléon (later Collège Henri-IV). His friend Pierre Jean de Béranger put him in touch with Joseph-Marie de Gérando and François Jomard, the leading lights of the SIE. Through them, he learned about mutual teaching and immediately understood the benefits of this method for musical education. In 1818, the Paris municipality allowed him to set up a first experiment at the elementary school on rue Saint-Jean-de-Beauvais. Wilhem developed a method, the necessary teaching materials (in the form of charts) and instructed the chosen student monitors. The results were, according to Jomard, spectacular. At the end of a few months’ instruction, the pupils had not only acquired the basic notions of solfeggio and musical notation, chromatic scales, intervals and measures, but were also performing collective songs in several voices (Jomard 1842: 228 ff)

This success led the SIE to propose to the Prefect and Minister of the Interior that music be introduced into the teaching of elementary schools in the city of Paris, a move officially endorsed in 1820. Wilhem himself was appointed full professor of music teaching in Paris, and music classes were introduced in many of the city’s schools, before spreading to the départements and regions. At the same time, the municipality opened two teacher-training colleges to train future singing teachers.

The second early player in the debate was the composer Alexandre Choron (1771-1834). A member, like Jomard and Francœur, of the first graduating class of the École polytechnique (1795), composer and friend of André Grétry, he had been concerned since 1805 about the decline of choral singing following the abolition of the master classes. An opponent of the Conservatoire, whose academicism and lack of interest in the teaching of choral singing he criticized, in 1812 he was entrusted by the Ministry with a mission to « reorganize the choir and the choirmasters of the churches of France ». He developed a teaching method known as the « concertante method », but also remained committed to the social vocation of choral music. Choron was also one of the founding members of the SIE in 1815, a sign of his commitment to educational issues. During the Restoration, he turned more to religious songs, which he considered to be the historical heart of choral practice. (…) Finally, with the king’s support, he founded the Institution royale de musique classique et religieuse, successfully competing with the Conservatoire in the teaching of vocal art.

For the general public, he arranged for oratorios, requiems and cantatas to be performed by singers from his school in a number of spacious churches, thus ensuring a new presence for sacred music on the Parisian stage. For some of these concerts, he sometimes mobilized student singers from elementary and poor schools, whom he never ceased to follow throughout his career. »

L’Orphéon des Dames de la Manufacture d’Armes et Cycles de Saint-Etienne, vers 1900.

« (…) What fostered this expansion of music education for young people and the working classes from 1820 onwards was a political will shared by a broad spectrum of leaders and stakeholders. The liberals who formed the core of the SIE continued to adhere to the emancipatory mission of education set out by the Convention. By focusing on both the inner formation of the soul and the blossoming of a collective conscience, music – and singing in particular – became a prime field for popular education. Liberals therefore emphasized the moral benefits of music. Thus, in his proposal to introduce singing into elementary school, Gérando remarks:
Those of us who have visited Germany have been surprised to see how much simple music plays a part in popular entertainment and family pleasures, even in the poorest conditions, and have observed how salutary its influence is on morals. And Joseph d’Ortigue states lapidary: ‘A people that sings is a happy people, and therefore a moral people. This emphasis on the social benefits of musical activity fits in well with the idea of ‘universal education’, inherited from the Enlightenment and the foundation of the pedagogies of Lancaster in England or Johann Heinrich Pestalozzi in Switzerland.' »

After a trial run at the St-Jean-de-Beauvais school in 1819, singing quickly spread to all the mutual schools. Wilhem was both the creator and the architect of the development of this teaching method, which soon spread to adult and apprentice classes. Periodic meetings of children initiated into vocal music were organized. Thus was born the first French post-school organization: the Orphéon, which, after Wilhem, counted Charles Gounod and Jules Pasdeloup among its directors.

In an 1842 speech to the SIE, Hippolyte Carnot asserted that Wilhem had « elevated music to the rank of a civic institution », and that the « ennoblement » of the individual soul was to be achieved in the new collective order of the reunited nation.

13. Jomard, Choron, Francoeur and « elementary » knowledge

Volvic.

Renaud d’Enfert‘s comprehensive article, published on the website of the Société de la bibliothèque et de l’histoire de l’Ecole polytechique (SABIX), completes the picture with a close-up on the work of Jomard and Francoeur, whose portraits are featured in a medallion on the façade of the SIE headquarters on rue du Fouarre in Paris.

Right from the start of the Second Restoration, the SEI received the backing and support of the Prefect of the Seine, Gaspard de Chabrol de Volvic (1773-1843). In the summer of 1815, the latter appointed Jomard, a linguist in contact with the Humboldt brothers who had been part of the short-lived commission under Carnot and who had protected him during the Hundred Days, « head of the office of public instruction and arts », a position he held until 1823.

In a decree dated November 3, 1815, Volvic, in order to take « the necessary measures to extend the benefits of instruction to all poor families domiciled within the prefecture » and to develop « the new system of elementary instruction » throughout the Seine department, created an eleven-person committee « to extend the benefits of free education to the Seine department », and included all the influential members of the SIE (Jomard, Gérando, Laborde, Doudeauville, Lasteyrie, Gaultier, etc.). ).

In this role, Jomard was responsible for finding sites for new schools. These rapidly multiplied in and around the capital: in 1818, he counted 18 free and 32 fee-paying mutual schools covering all of the capital’s arrondissements, as well as 13 schools in the arrondissements of Sceaux and Saint-Denis. From this work, he drew up his « Abrégé des écoles élémentaires » (1816), a sort of practical guide in which he compiled everything a cityen decided to set up a mutual school needed to know about material organization.

On the pedagogical front, Jomard was the author, in 1816, of a reading method produced in collaboration with the composer and musician Alexandre Choron, who had published a method for learning to read and write as early as 1802, and Abbé Gaultier, a pedagogue who had developed a teaching method under the name of « jeux instructifs » and had traveled to London to study English methods.

Designed for the new elementary school on rue Saint-Jean-de-Beauvais, where Choron was appointed music teacher, it breaks with the traditional spelling method.

Instead of saying « b-o-n = bon », she uses the musical sounds of the language to say « b-on = bon ». In 1821-1822, Jomard also published « Arithmétique élémentaire » (Elementary Arithmetic), designed to remedy the weaknesses of Lancaster’s arithmetic method, which he accused of « making children contract a simple, routine and mechanical habit » instead of serving « to fortify their attention and train them in reasoning ». In the meantime, he and Francœur and Lasteyrie had set up a « calligraphy commission » at the SIE, to develop the principles that would guide the teaching of writing in mutual schools, a writing style intended to be « national », to replace the English models.

Francoeur


For his part, Louis-Benjamin Francoeur (1773-1849) provides, according to Jomard, « a long series of luminous reports on treatises on arithmetic, weights and measures, singing and musical art, drawing and geometry, which it would take far too long to relate or quote ». Filling a gap, in 1819 Francœur published « Le dessin linéaire » (Linear Drawing), a drawing method based on freehand drawing of geometric figures, which broke with traditional, academically inspired ways of teaching and learning drawing.

For Jomard and Francoeur, the idea behind « mutuel tuition » was to broaden the range of subjects taught in primary schools beyond the traditional « reading, writing and arithmetic »: in addition to drawing, also singing, gymnastics, geography and grammar now made their appearance in elementary school.

Model’s out of Francoeur’s handbook for linear drawing.


Linear drawing was nonetheless seen as an elementary skill in its own right, on a par with reading, writing and arithmetic.

Presenting Francœur‘s method to the Société d’Encouragement, Jomard declared:

« The usefulness that industry may one day derive from it is so great and so visible, that it would be superfluous to insist on it. It is not without reason that this result has been considered as precious for the people, as the knowledge of reading and writing ».

Finally, for Jomard, the widespread teaching of reading, writing, arithmetic, linear drawing and singing is the prerequisite for the scientific education of the people:

« In recent times, we have rightly insisted on the usefulness of teaching the elements of the physical and mathematical sciences to the working class. On this depends the advancement of industry and agriculture, which, despite all their progress, are still backward in many respects. It is only through the possession of these elementary notions that workers will perfect their processes, their means, their instruments and their products, and will be able to become skilful foremen and good workshop managers. But how can this be achieved when the mass of the population is still so ignorant?

How, without the art of reading and writing, could they not understand a single word of the chemical and mechanical arts, but only feel their advantage and consent to engage in arduous studies? What’s this! Fifteen million Frenchmen and more perhaps, do not know how to do the first two rules of arithmetic, and we would flatter ourselves to propagate among them the first principles of mechanics and geometry! The basis of this improvement is obviously primary education made more general or even universal ».

14. Nationwide


The results of mutual education are spectacular and rapid, both in terms of learning time and the quality of skills acquired. Whereas in the Lasalle Brothers’ schools it took 4 years to learn to read, this time was reduced to a year and a half in the mutuel establishments!

The enthusiastic French of 1815, with their vivid imagination, saw in this teaching system a veritable panacea. It had undeniable advantages. First of all, it was economical, requiring few teachers and enabling a considerable number of children to be taught at low cost. It is estimated that 4,000 to 5,000 fr. a year were sufficient to maintain a school of 1,000 children: 4 fr. per pupil! Education would never have been so cheap. It also ensured rapid development of primary education, since the shortage of teachers was no longer a limiting factor. With figures to back it up, it was calculated that it would only take a dozen years to extend the benefits of primary education to the whole of France!

To these indisputable advantages, the travelers of 1815 added qualitative arguments. They considered the teaching of instructors superior to that of masters: « He does not know his lesson better than the master, » wrote Laborde, « but he knows it differently ». The child instructor (monitor) takes pleasure in communicating his newly acquired knowledge to his classmates, doing his job « with as much charm as a preceptor finds it disgusting » (Laborde).


On the other hand, being a child himself, he knows better than the teacher the difficulties of the task, the pitfalls of the lesson, over which he has just stumbled. He will therefore lead his classmates more slowly, more surely, and be a better guide for them.

But teaching won’t be the only thing to benefit from the mutual system; school discipline and morals will also benefit. The child, submissive to his classmate, will obey him more readily than the teacher, since the young instructor owes his superiority solely to his own merit. Finally, the child, with his classmate who knows him well because he lives with him, will not have, as with the teacher, the resource of lying to hide his intimate thoughts or faults: and dissimulation, the social scourge that was learned from the school benches, will thus disappear from mutual establishments.

And Laborde concluded his apology for the method : in the new schools, « work is for them a game, science a struggle, authority a reward ».

The benefits of this teaching were not to be confined to the school: children returning home would in turn exert a happy influence on their parents, becoming « missionaries » of both morality and truth in their families.

Gontard wrote in 1956:

« And let no evil spirits say that these are the daydreams and utopias of idealists! There is irrefutable proof of the value of this method. Look at Scotland. At the end of the 17th century, it was a land of beggary and misery, living without law, without religion, without morals, men drinking, women blaspheming, all fighting. In 1815, thanks to the magic wand of the mutual school, Scotland became a paradise. « It is not uncommon in Scotland to find a shepherd reading Virgil… but it is almost unheard of to meet a malefactor there, »

Laborde agrees.

« Let’s develop the method in France and, by 1850, it will be a land of prosperity and happiness, from which immorality, fanaticism, revolutions and social unrest, all sons and daughters of ignorance, will be banished. »

In 1818, Joseph Hamel, in his report to the Emperor of Russia, notes:

« The method of mutual education has been introduced throughout France with a rapidity and success far greater than could reasonably be expected, and in less than three years more than 400 schools have already been founded. There is every reason to hope that, in the not-too-distant future, more than 2 million children who were still in complete ignorance will be able to receive the benefits of a free education, sufficient for their future vocation.« 

Right from the start, with Carnot and a generation of brilliant scientist coming out of Polytechnique, France was giving leadership !

Pupils of Polytechnique, pediment of the Panthéon in Paris, David d’Angers.


Amiens and the Somme department

Interesting in that regard, the following account of the adoption of mutual tuition methods in Amiens and the Somme department.

« On May 15, 1817, after much mistrust and hesitation, the Amiens town council founded a society to encourage elementary education in the department. More than ennobling the pupils’ souls, for the rector, it was a question of ‘giving the children of these workers an elementary education, [to prepare them] not only for the habit of order and subordination that is acquired in the mutual education schools and which they carry over to the workshops, but also to put them in a position to serve more usefully inside the factories, how to study the industrial processes whose preservation and improvement are so essential to national prosperity' ».

For the Rector, speed of acquisition was a guarantee of success for the new method compared to the « simultaneous method »:

« That a primary education which takes children away for whole years from work necessary for the family’s subsistence becomes for the poor a very onerous burden; but that experience teaches the father of a family that a few months will suffice to procure for his children an advantage which he has regretted so many times in the course of life not to have been able to enjoy himself, we must hope that he will not sway to make a slight sacrifice in order to obtain an important result ».

The manuel class, 1891. Girls school (Finistère).

These are mainly boys’ schools. There are a few girls’ schools and evening classes for adults. They mainly catered for the children of small craftsmen: dyers, octroi clerks, innkeepers, foremen, tailors, millers, dressmakers, coopers, dressmakers, locksmiths, butchers, spinners, ironers, laborers, car loaders, carpenters, booksellers, lamplighters, cutlers, bookbinders and so on.

At its peak, in 1821, mutual education in the Somme department included not one but 25 schools, 4 of them for girls (for a fee): 4 out of 10 were located in towns. In 1833, there were 16 more. The network shrank considerably thereafter, but did not disappear altogether. The last two schools in Amiens closed their doors involuntarily in 1879, and the one in Abbeville in 1880: until then, it played an important role in preparing candidates for examinations.

The Amiens Model School – the first provincial model school – prepares future teachers for the practice of mutual education. It was founded on May 26, 1817. It welcomed over 200 pupils. By 1818, 6 teachers from the Somme had graduated. Most of the teachers from the Aisne, Oise and Pas-de-Calais departments spent some time there before taking up their duties.

In 1831, when the Prefect created the Ecole normale de garçons, it was called the « Ecole normale primaire d’enseignement mutuel ». At first, it served as a training school: student teachers were required to visit the school once a week to observe and practice the mutual teaching method.


After the government reshuffles of 1817-1818, several SIE members were appointed to important ministries: Mathieu Molé (1778-1838) to the Navy, Laurent Gouvion-Saint-Cyr (1764-1830) to the War, Elie Decazes (1780-1860) above all to the Interior, the ministry on which primary education depended. Government support became systematic.

The Minister of the Interior supported the SIE de Paris and its subsidiaries with grants for school foundations and maintenance. He invited the prefects to contribute in any way they could to the development of the method. Prefects took the initiative in setting up local companies, and lobbied local assemblies for subsidies.

A growing number of General and Municipal Councils voted to set up mutual schools. Once a school had been founded, the local authorities (prefect and mayor) visited it and presided over the prize-giving ceremony. For its part, on July 22, 1817, the Commission d’Instruction Publique, which since 1815 had replaced the Grand Master of the University, decided to establish a model mutual-education school in the chief towns of France’s twelve Academies, as a breeding ground for future teachers. Other ministers, each in their own sphere, supported the method.

Molé, in charge of the colonies, founded mutual tuition schools in Senegal.

In 1818, Gouvion-Saint-Cyr established a full-fledged « Ecole normale militaire d’enseignement mutuel » in the caserne Babylone of Paris. Each regiment in Paris and the provinces was required to send one officer and one non-commissioned officer, who would return after a few months’ training to teach the troops the benefits of primary education.

In 1817-1818, mutual tuition triumphed. An irresistible enthusiasm carried France towards it. The network of schools continued to expand. From term to term, more and more reports arrived in Paris from the provinces, counting schools and their pupils.

It was a song of victory that Jomard could sing at the SIE meeting in January 1819. Of the 81 départements in France, only 5 had no mutual school; the other 76 had 687 schools, attended by over 40,000 pupils. There were also 105 regimental schools, 5 adult schools, 4 prison schools and 2 or 3 schools in Senegal.

Geographical Society of Paris (1821).

Exemplifying what was becoming a new Promethean paradigm of scientific optimism, on December 15, 1821, at a meeting at Paris City Hall, the Geographical Society was founded by 217 leading figures, including some of the greatest scientists of the day, such as Jomard, Champollion, Cuvier, Chaptal, Denon, Fourier, Gay Lussac, Berthollet, von Humboldt and Chateaubriand. Other illustrious members include Jean-Baptiste Charcot, Dumont d’Urville, Élisée Reclus and Jules Verne.

The collection and study of geographical data from many continents enabled certain members, such as Gustave Eiffel and Ferdinand de Lesseps, to propose major infrastructure projects, notably the Suez and Panama Canals.

15. Criticism

The first criticisms of mutual education came not from its failure, but from its success. The first « risk » was that the children, having learned too effectively and too quickly (2 to 3 times faster !), would return « to the streets » too soon, not yet being old enough to go to work!

Children weren’t « locked up » at school long enough, and so mutual education disturbed the existing social order. In 1818, the General Council of Calvados heard:

« The greatest service to be rendered to society would perhaps be to devise a method that would make instruction for the lower and indigent classes of society more difficult and time-consuming »…


The second « risk » was that, by continuing to use mutual education, these newly-educated people, mostly from the poorer classes, would become too intelligent, too « enlightened », and begin to express political or social demands, in particular that everyone should have the same rights as the better-off social classes.

Imagine the mess if the social order were challenged! French urban planner and sociologist Anne Querrien notes that, in fact, most of the organizers of the labor movement at the time came from the mutual school, where they had of course learned to read, write and count, but also to trust themselves and their comrades. The mutual school encouraged its pupils to think, and in particular to reflect on the organization of society, a society that assigned them a destiny of submission and obedience.


The influential theologian and politician Félicité Robert de Lamennais (1782-1854) said it loud and clearly :

« Lancaster-style schools are the craze of the day. All the authorities in this country, and especially the Prefect, are infatuated beyond expression. Hatred for priests has a lot to do with this mania. The fact is that everything good about this method has been practiced for over a century by the Brothers of the Christian Schools; the rest is pure charlatanism. There is talk of teaching children to read and write in four months: in the first place, this would be a great misfortune, for what can be done with such well-educated children, whose age would not yet allow them to work? Secondly, nothing could be further from the truth than these marvellous results. »

If one has « to decide between the instruction of Abbé de La Salle and that of Lancaster, the question is quite simple; it’s a question of choosing between society and anarchy ».


His brother, the vicar Jean-Marie de la Mennais (1780-1860), took the lead in what can only be described as a political witch-hunt. He said:

« Mutual education was introduced into France by Protestants during the disastrous Hundred Days. M. Carnot was then Minister of the Interior; under his auspices, the Société d’Encouragement, established to propagate this method, held its first meeting on May 16, 1815 ».

He struggled to prove that « the Lancastrian method is defective in its procedures, dangerous for religion and morals in its results » and in a brochure, De l’Enseignement mutuel, published in 1819 in Saint-Brieuc, Brittany, he vigorously attacked this teaching method.


It’s true that questioning authority and the established order is inherent to mutual education. The « simultaneous » method is based on the premise that to pass on knowledge, you need to be qualified (to be the teacher). Conversely, in the mutual school, the teacher is no longer the repository of knowledge, as each student can enlighten his or her classmates.

Another concern for the elites was that, with this method, children are merely instructed, not « educated », and no Christian moral education is imparted.

Last but not least, mutual teaching required fewer supervisors, given the pupils’ role as creators, transmitters and bearers of knowledge. Some may have feared for their jobs…

Brother’s schools.

In 1818, in his report to the Emperor of Russia, Joseph Hamel told the mutualists’ main opponents, the « Brothers of the Christian Schools », that they were almost entirely unaware of what they were denouncing. Hamel also points out that there are 40,000 communes to be provided with elementary school, and that the number of Brothers‘ schools « does not amount to more than one hundred in the kingdom… ».

On the negative side, what is striking, when examining the incriminations, is that one thing is said in the morning and its opposite in the afternoon. In the morning, it’s said that mutual education blurs minds by diluting the authority of teachers; in the afternoon, it’s asserted that it overly « militarizes » education through a totally hierarchical command structure!

On the question of « morality », Lazare Carnot would never have endorsed an education that ruined the Christian spirit, let alone the notion of legitimate authority, while vigorously combating those that lacked it, such as the Monarchy of divine right or the Consulate for life imposed by Napoleon. In the same way, in the morning, the mutualist system was accused of failing to transmit Christian « morals »; in the afternoon, it was seen as a Protestant plot…

And yet, the national impulse in favor of « the fatherland » and future generations has succeeded in uniting personalities from all political and religious backgrounds in a single effort.

Cuvier (Protestant) and Gérando (Catholic), both fervent republicans and promoters of the mutual mode, as well as the Inspector General of the University, Ambroise Rendu (1778-1860, Catholic), even took part in drafting the ordinance of February 29, 1816, promulgated by Louis XVIII and the Minister of the Interior, de Vaublanc (1756-1845).

Following massive pressure from the congregations, mutualist teachers Martin, Frossard and Bellot, all Protestants, were forced to leave their school headships. Martin went on to be very useful in other European countries, notably Brussels, where in 1820 he organized a mutual school at Les Minimes.

16. Mechanistic drift?

Without grasping the state of mind and enthusiasm that young polytechnicians might have had for the blossoming of an industrial culture and the wonders of machinismo, the defenders of a feudal France see only a « fundamentally mechanistic vision », when Jomard compares the mutual method to a machine, with its cogs and springs, of which the teacher is a mere operator:

« Once the school has been establisehd out and equipped with all the furniture it needs, all that remains to be done is to introduce the pupils and the teacher, and then to set in motion all the springs of this kind of mechanism, by means of the new practices ».

While Victor Hugo evoked a « happy swarm », Laborde was accused of a « mechanistic » drift when he compared the buzzing activity of pupils in English mutual schools to the noise of machines in cotton mills.

Communication, argued critiques, is « entirely mechanical and hierarchical ». It flows « only from the master or general instructor to the instructors and pupils, not in the other direction. It’s a means of action, not a means of exchange.« 

Let’s face it, any pedagogical approach, no matter which one, set up as a system and postulating that it’s « enough » to apply mechanically to a human being, can be horrifying. It’s easy, then, to accuse the mutual school of all the ills from which those who accused them suffered, perhaps even more so.

At the mutual school, corporal punishment is banned. It was a courageous decision that Octave Greard was quick to point out:

« It is one of the claims of the founders of the mutual schools to public recognition that they outlawed the corporal punishments, ferulas and whips, which were still in use, and we cannot be too grateful to them for having sought to replace in the hearts of pupils the feeling of fear with the feeling of honor, or, as M. de Laborde used to say, the feeling of well-administered shame ».

Knowing the immense happiness of the thousands of children who quickly gained access to a minimum of public instruction and experienced the indescribable joy of educating their peers, one can only suspect the pen of jealous congregations behind this poem falsely lamenting the misfortune of the poor little ones:

« This system, it is said, born of Anglomania,
Contrasts horribly with our genius.
There, everything is mechanism and our sad children
Seem like a machine, in the middle of their benches;
Their absurd discipline, and no doubt fatal,
Governs even the steps, the attitude or the gesture:
Today, we can prophesy the fate
Of this automaton people thus moved by spring ».

17. Death of Mutual Tuition in France

« Progrès des Lumières », print, 1819.

In 1815, after Waterloo, King Louis XVIII, who had fled, returned on July 8, 1815. Unlike his brother, the future Charles X, leader of the ultra-royalists, was fully aware that the history of the Revolution could not be erased. He realized that France could no longer be a country of « subjects », and that it had become a Nation. Hence the « Constitutional Charter » he promulgated, which had the force of a constitution. In the same spirit, in view of the popularity of mutual education, he granted it favors (subsidies, creation of model schools, protection from the Ministry of the Interior).

Mutual education soon lost its protectors, as the ministerial commission created by the decree of April 27 did not survive Napoleon’s fall in June 1815.

By the autumn of 1816, criticism was pouring in from the Congregationalists. The Grand Chaplain of France, Cardinal de Talleyrand-Périgord, Archbishop of Reims (John Baptist de La Salle’s birthplace…), for his part, addressed the King to express the alarm of Catholics.

By 1820, the SIE already had a network of 1,500 mutual schools, grouping together more than 170,000 pupils thanks to an audacious collective pedagogy. However, mutualism came under fire from the ultras, who considered it too liberal, too favorable to children’s autonomy and incapable of « raising youth in religious and monarchical sentiments ».

The child who leaves this school, they say, « is a learned parrot, without religious ideas, without moral values, more dangerous than the ignorant for the political and social order, since instruction has developed new needs in him, always ready to engage in new scenes of revolution or dechristianization. Ah, Carnot, the regicidal conventionalist and patron of mutual education, knew what he was up to when he introduced it into France with the decree of 1815! »

Jean-Baptiste de La Salle, founder of the « Brothers of the Christian Schools ».

As said earlier, in France, mutual tuition was seen as an aggression by the religious congregations who practiced « simultaneous teaching », codified as early as 1684 by Jean-Baptiste de La Salle (1651-1719) for Institute of the Brothers of the Christian Schools (Latin : Fratres Scholarum Christianarum; French Frères des Écoles Chrétiennes; Italian: Fratelli delle Scuole Cristiane, abbreviated FSC) : classes by age, division by level, fixed and individual places, strict discipline, repetitive and simultaneous work supervised by an inflexible master.

And the merits of the FSC’s schools and « simultaneous teaching », confirmed by centuries of experience, were considered in total opposition to those of mutual education, the « mania of the moment », and considered the work of « charlatans » speculating on primary education.

A fierce supporter of order and suspecting a vast Protestant plot against the Vatican, Pope Leo XII, the « Pope of the Holy Alliance », decided in Quod Divina Sapientia, his papal bull of August 28, 1824 (art. XXVII, 299), that « public schools of mutual instruction will be suppressed and abolished in all the Papal States. The bishops will prosecute those who continue to use this teaching method or who attempt to introduce it into their dioceses ».

In anticipation of the Papal Bull, the Ordinance of April 1824 placed mutual education in France under the strict supervision of the traditional Church, which took over the entire educational question. In August, just after Leo XII’s bull, a Ministry of « Ecclesiastical Affairs and Public Instruction » was created, a name that reflected the Church’s return to business. The accession of Charles X only exacerbated this situation. The Church of the time loved the Enlightenment, but above all it loved candlelight…

Catholic School at Versailles, painting by d’Antoinette Asselineau, 1839.


From then on, the schooling situation took a dramatic turn for the worse.

In 1828, of the 39,381 communes :

  • around 24,000 had boys’ schools, catering for 1,070,000 children ;
  • no more than 430,000 girls attended elementary school;
  • 15,381 communes have no boys’ schools ;
  • and perhaps 20,000 without girls’ schools;
  • 1,680,000 boys and 2,320,000 girls attend no school at all, making a total of 4 million.

Despite an upturn between 1828 and 1829, mutuellism was rejected, its schools closed one after the other (their number fell by three-quarters compared to 1820), although the electoral weight of the ultras diminished from election to election. However, the people’s educators resisted.

In the years following the 1830 revolution, over 2,000 mutual schools were still in operation, mainly in towns, in competition with the denominational schools promoted by the regime. Officially, the mutual school was not a guarantor of morality, and was said to be « industrial » and inhumane.

François Guizot.

Then came the famous « Guizot moment ». Although he had initially campaigned for the development of mutual education within the SIE, François Guizot (1787-1874), Louis-Philippe’s Minister of Public Instruction from 1832 onwards, gave mutual education the coup de grâce in France by having the « simultaneous » method endorsed as the only official teaching method.

Schools adopting mutual tuition were no longer subsidized, nor did they receive any support from the government or the Church. Faced with material difficulties, the majority of pupils mostly admitted free of charge had now to pay a fee. Many parents in need withdrew their children and sent them to the newly opened Brother of the Christian Schools, who had become free of charge…

The Church slanders, casts doubt on the morality of the teachers, tried to keep the children of Catholic families away from the « devil’s school », persecutes and threatens to keep them away from catechism and communion in order to break mutual tuition. Most of the teachers using that method felt obliged to bandon it and embrace the official « simultanous » method. With no more pupils, no more teachers, mutual schools gradually disappeared.

It was Guizot who put the final nail in the coffin of mutual tuition, creating the École normale des instituteurs in 1867 to train the future teachers of Jules Ferry’s school in the simultaneous method still the norm today.

The young Hippolyte Carnot also joined the SIE in order to reconnect, post mortem, with his father. In 1847, when he became Minister of Public Instruction under the Second Republic, he attempted to revive the mutual education cherished by his father Lazare Carnot, but although his work was great, his enemies were many and his term of office very short.

18. Conclusion

Education is in deep crisis. Everything that was largely accomplished by Lazare Carnot and his son Hippolyte has been systematically destroyed by the new church of our time: the financial, transhumanist and decadent oligarchy, having led the world to the brink of collapse, still determined to save its privileges by organizing the physical and moral ruin of humanity.

To rebuild an education worthy of the name, we are convinced that mutual education, provided it is adapted to our times, is an extremely promising avenue. Several African countries, currently lacking sufficient resources, are already taking inspiration from it.

Mutual tuition is not a relic of the past, but an experiment to be renewed to open the gates of the futur. For the Global South, still plagued by post-colonial exploitation, war and epidemics, education of this kind is the way to go: efficient, rapid and cheap but also humanizing and joyfull, it is the way to go.

It’s a message that Vincent Faillet, a young french teacher with a doctorate in education and training in the Paris region, who is reviving this method, cleary expresses in this video:

19. Short list of works consulted

Merci de partager !

The challenging modernity of the Indus Valley Civilization

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Toys for children, Indus Valley Civilization.

Karel Vereycken, Paris, France, January 2023

A major archaeological discovery has just been made in Israel in 2022: the first evidence of the use of cotton fibers in the Near East and among the oldest in the world, dating back nearly 7,000 years, was discovered by Israeli, American and German archaeologists during an archaeological excavation at Tel Tsaf, southeast of Beit She'an, in the Jordan Valley of Israel. 
Microscopic remains of cotton discovered in Tel Tsaf, using micro-remains analysis. (Courtesy University of Haifa)

So far, the earliest available evidence of cotton fibers in the area was dated to a few hundred years later, to the late Chalcolithic (Copper Age) and Early Bronze Age (about 5,000 to 6,500 BCE) from the archaeological site of Dhuweila in eastern Jordan.

Discovered in 1940, the site of Tel Tsaf reveals its secrets. « Tsaf is characterized by an amazing preservation of organic materials, » said Professor Danny Rosenberg of the Zinman Institute of Archaeology at the University of Haifa. « Tel Tsaf was a kind of pole that concentrated important commercial activities and had established contacts with many other peoples, » Rosenberg believes. « There was massive storage capacity there to accommodate grain, enormous capacity if you compare it to other sites.

For example, the earliest evidence of the social use of beer drinking and ritual food storage has been found there. Rosenberg and the other researchers also found beads from contemporary Anatolia, Romania, Egypt and other parts of Africa; pottery from Iraq, Syria and Armenia; and the earliest copper and other metals found in the world.

“Wool Tree” and “Cotton Roads”

Trade relations of the Indus Valley Civilization.

The cotton found in Israel, probably came from the Indus region—modern Pakistan/India—which was the only place in the world that had begun to domesticate cotton at that time before its cultivation appeared in Africa thousands of years later.

« What’s interesting about this early evidence of a link to such a distant region is that it comes from fibers – microscopic pieces of ancient yarn. We assume that these cotton fibers, found along with wool fibers and plant fibers, arrived at the site as part of fabrics or clothing, i.e., ancient textiles, » Rosenberg says.

In addition, cotton was not only used for clothing: « In the prehistoric era, textiles were involved in many areas of life, not only in clothing but also in hunting, fishing … This is much more important than just saying that what we found are pieces of clothing that were worn by the inhabitants of the area. This discovery tells us a lot about the economic practices of the area, » says Rosenberg.

Since cotton had never been grown in Tel Tsaf, it was a surprise for the researchers to find it, and they felt that its presence underscored the city’s importance as a global trading hub at the heart of what could be called, the « Cotton Roads » of those days.

Growing cotton poses major challenges: a moderate to tropical climate and vast amounts of water. Just to produce a single T-shirt and a pair of jeans (representing about 1 kg of cotton), no less than 20,000 liters of water are required! Which civilization can afford such a performance at the beginning of the 7th millennium BC?


The Indus Valley civilization (IVC)

In yellow: settlements, colonies and outposts of the IVC. In white, the Himalayan snow which feeds the Indus Valley water flow.

The term « Indus Valley Civilization » (IVC) refers to a vast cultural and political entity that flourished in the northern region of the Indian subcontinent between about 8000 and about 1900 BCE., a region that stretched from Baluchistan (Pakistan) in the west to Uttar Pradesh (India) in the east and from northeastern Afghanistan in the north to Gujarat (India) in the south.

In the absence of both literary sources and remnants of palaces and temples to confirm it, one cannot qualify this entity as a “Kingdom” or an “Empire”. Its modern name (IVC) derives simply from its location in the Indus Valley, but also goes under the name of the « Indus-Sarasvati civilization » or « Harappan civilization ». These last designations come from the river Sarasvati, mentioned in the Vedic sources, which flowed next to the Indus and which would have disappeared, and from the ancient city of Harappa (Punjab, Pakistan), discovered by the British in 1829, but deliberately left unexplored.

The rise of a great urban civilization in the Indus Valley, which reached its maturity around 2500-2400 BCE, was long considered a sudden and mysterious phenomenon. Today, a series of discoveries allows us to follow, from 7000 to 2500 BCE, a series of transformations and innovations whose cumulative effects, stimulated by the enlargement of the network of exchanges from 3000 BCE onwards, created the conditions for the development of an incredibly modern and prosperous urban civilization.


Enter Mehrgarh, the light of the world!

Remnants of Mehrgarh (Balochistan, Pakistan). Houses and food storage facilities.



Since prehistoric times, the Indus region has been pioneering and rich in discoveries. As an example, for the Guinness Book of Records, although a case apart, the farming village of Mehrgarh (Baluchistan, Pakistan) which dates from the Neolithic (using only stones as tools) but can be considered as the key culture and city that lead humanity, as early as in the 8th millennia BCE, from the Stone Age into the Age of Copper.

The site is located on the principal route between what is now Afghanistan and the Indus Valley: this route was also undoubtedly part of a trading connection established quite early between the Near East and the Indian subcontinent.

Excavations in Mes Aynak (Afghanistan), where archaeologists are only beginning to find remnants of a 5,000-year-old Bronze Age site beneath the Buddhist level, including an ancient copper smelter, will undoubtedly shed new light on these relationships.

On the basis of a variety of well-documented archaeological finds, it has been established that “pre-Harrapan” Mehrgarh, made several historical breakthroughs for the benefit of humanity as a whole.

Mehrgarh gave the world:

  • among the oldest traces of agriculture (wheat and barley) and breeding (cattle, sheep and goats) in South Asia ;
  • the first breweries (with wheat and barley);
  • the oldest reservoirs for irrigated agriculture and flood prevention;
  • the oldest traces of cotton culture (6th millennium BCE);
  • the oldest jewel, called the « Mehrgarh amulet » (6th millennium BCE), produced with the « lost wax » bronze casting technique ;
  • the oldest bow drills (in green jasper) allowing to drill holes in lapis lazuli and carnelian;
  • the very first traces of successfull dentistry practices (!) (9th millennium BCE); The inhabitants of Mehrgarh appeared to have developed an understanding of surgery and dentistry, as evidenced by the drilled teeth of some of the skeletons found at the site. Analysis of the teeth shows that prehistoric dentists worked to treat toothaches with drills made from flint heads. The work was so elaborate that even modern dentists are surprised at the efficiency with which the Mehrgarh « dentists » removed decaying tooth tissue. Among the remains, a total of eleven drilled crowns were found, with one example showing evidence of a complex procedure involving the removal of tooth enamel followed by carving of the cavity wall. Four of the teeth show evidence of decay associated with the drilled hole. None of the individuals with drilled teeth appear to have come from a special tomb or shrine, indicating that the oral health care they received was available to all.
Dentistry practices were common in 9000 BCE in Mehrgarh.



Densely populated

Originally, the IVC was built around the fishy meanders of the Indus, a river nearly 3200 kilometers long that flows from the Himalayan mountains towards the Arabian Sea. Like the populations of other great river valleys, this society was seduced by the fertility of the land as well as by the possibility of using the Indus as a transportation route.

The IVC, whose prosperity rests largely on the increasingly systematic exploitation of the rich silt of the Indus, spread over an immense territory encompassing the entire Indus Valley and part of Indian Gujarat. It is necessary to add to the vast zone of distribution of the Indus civilization some Harappan « colonies » or outposts like Sutkagan Dor (Ballochistan, Pakistan), close to Gwadar on the edges of the sea of Oman, at the Iranian-Pakistani border, and the lapus lazuli mining town of Shortugai, close to Amu Darya river, at the Afghan-Tajik border, at nearly 1,200 kilometers of Mohenjo-daro, by far the largest IVC urban concentration.

Four famous river basin based civilizations.

At its peak, this civilization was twice as large as the Old Kingdom of Egypt. With an area of 2.5 million square kilometers, it was at the time the largest civilization in the world: it included 5 million people, or 10 % of the world population at the time, much more than less older civilizations as Sumer (0.8 to 1.5 million people) or ancient Egypt (2 to 3 million).

To date, about 2,000 sites have been discovered in India, Pakistan and Afghanistan. Because of various wars and conflicts, only 10 % of the territory of these sites has been excavated and scientifically investigated. On the Indian subcontinent, the main centers of this civilization are Harappa (estimated 23,500 inhabitants) and Mohenjo-daro (est. 40,000 inhabitants) in Pakistan and Lothal, Dholavira and Kalibangan in India. In addition to trade relations with Mesopotamia and Iran, the Harappan city-states also maintained active trade relations with the peoples of Central Asia.

Agriculture, crafts and industry

IVC and India.

Agriculture, animal husbandry, industry, trade and commerce were the main source of income.

Agriculture was the main occupation of the people of the Indus Valley. They cultivated barley and wheat on a large scale (and made beer) but also other crops such as legumes, cotton, cereals, sesame, dates, mustard, melons, peas, etc.

There is no real evidence of rice, but a few grains of rice have been found in Rangpur and Lothal.

In the towns of Mehrgarh, Harappa, and Mohenjo-daro, there are remains of large granaries, suggesting that they produced more than they needed and physically stocked cereals and other food products in case of crop failure.

Bull from IVC

Animal husbandry was another major occupation. Seals suggest that they domesticated cows, buffalos, goats, sheep, pigs, etc. Camels and bullocks were also domesticated and used as beasts of burden. Camel bones have been found in large numbers at many sites, but there is no trace of them on the seals. During the excavation of Surkotado in Gujarat, India, the jawbone of a horse was found. Terracotta figurines representing a horse were found in Nausharo and Lothal.

The inhabitants of the Indus Valley were very skillful. They made ceramics, metal vessels, tools and weapons, weaved and spun, dyed and practiced other crafts with potter’s wheels. The weavers wore clothes made of cotton and wool. They knew leather, but there is no record of silk production.

Ceramics from Mehrgarh (3000 BCE).

The inhabitants of this civilization originally came from the Bronze Age and used stone tools, but they soon excelled in the manufacture and processing of gold, silver, copper, lead and bronze, especially for artistic ornaments of great finesse.

Artisans made jewelry in Mohenjo-daro, Chanho-daro and Lothal. They used ivory and various precious stones such as carnelian, lapis lazulite, agate and jasper to make them. Shell work was also a thriving industry. Craftsmen in the coastal colonies used shells to make buttons for shirts, pendants, rings, bracelets, beads, etc.

To supply the production of these craft professions, they needed to import various raw materials. To produce bricks and ceramics, clay was available locally, but for metal they had to acquire it from abroad. Trade focused on importing raw materials to be used in Harappan city workshops, including minerals from Iran and Afghanistan, lead and copper from other parts of India, jade from China, and cedar wood floated down rivers from the Himalayas and Kashmir. Other trade goods included terracotta pots, gold, silver, metals, beads, flints for making tools, seashells, pearls, and colored gemstones, such as lapis lazuli and turquoise.

Ox carts were used to transport goods from one place to another. They also constructed barges used on the waterways along the Indus and its tributaries for transportation.

One of the ways historians know about the maritime trade network operating between the Harappan and Mesopotamian civilizations is the discovery of Harappan seals and jewelry at archaeological sites in regions of Mesopotamia, which includes most of modern-day Iraq, Kuwait, and parts of Syria. Long-distance sea trade over bodies of water—such as the Arabian Sea, Red Sea and the Persian Gulf—may have become feasible with the development of plank watercraft that were each equipped with a single central mast supporting a sail of woven rushes or cloth.

Land and maritime trade relations.

Historians have also made inferences about networks of exchange based on similarities between artifacts across civilizations.

Between 4300 and 3200 BCE, ceramics from the Indus Valley Civilization area show similarities with southern Turkmenistan and northern Iran. During the Early Harappan period—about 3200 to 2600 BCE—there are cultural similarities in pottery, seals, figurines, and ornaments that document caravan trade with Central Asia and the Iranian plateau.

The wonders of Mohenjo-daro

Sometimes referred to as the « Manhattan of the Bronze Age » for the grid pattern of the city plan, Mohenjo-daro (Sind, Pakistan) remained buried under meters of alluvial sediment until 1922.

A real metropolis made of baked bricks, it covers more than 200 hectares. Strictly squared, cut in two by a street of ten meters wide, divided from north to south by a dozen arteries drawn with the cord, and crossed from east to west by paved streets, Mohenjo-daro represents, by its strictly reflected urban framework, the model city of the Indus civilization. It could have accommodated up to 40,000 people!

The stunning contribuions of the Indus Valley Civilization to humankind.
Major breakthroughs of the IVC: production of standardized bricks, tower water wells (left), circular grinding place (mill) for cereals (right), unified system of measurement (center), shipbuilding and sailing (below).

The Harappans were masters of hydraulic engineering, a “riparian” people working in river corridors practicing irrigated agriculture. They mastered both the shaduf (an irrigation tool used to draw water from a well), and windmills.

In the Harappan cities, the domestic and manufacturing areas were separated from each other.

The inhabitants, living in one-, two-, and sometimes three-story dwellings, seem to have been mainly artisans, farmers, and merchants. The people had developed the wheel, cattle-drawn carts, flat-bottomed boats large enough to carry goods, and perhaps also sailing. In the field of agriculture, they had understood and used irrigation techniques and canals, various agricultural implements, and had established different areas for livestock grazing and cultivation.

Seals and harrapan script

Seals with trade-marks.

Among the thousands of artifacts found at the various sites are small soapstone seals just over one inch (3 cm) in diameter, used to sign contracts, authorize land sales, and authenticate the point of origin, shipment, and receipt of goods in long-distance trade. On each seal is a small text in Harappan, a language yet to be deciphered.

Among the thousands of artifacts found at the various sites are small soapstone seals just over one inch (3 cm) in diameter, used to sign contracts, authorize land sales, and authenticate the point of origin, shipment, and receipt of goods in long-distance trade.

Commercial contacts between the Indus and Sumer populations are well documented. Numerous seals from the Indus Valley have been discovered in Mesopotamia. On each seal, a small text in Harappean, a language that remains to be deciphered.

If 4,200 texts reached us, 60 % of them are seals or mini-tablets of stone or copper, engraved, and they comprise on average… only five signs! The longest text has 26 signs. The texts are always accompanied by the image of an animal, often a unicorn or a majestic buffalo. They were intended to mark goods, probably indicating the name of the owner or the recipient and a quantity or a year. Trying to decipher the Indus language is a bit like trying to learn French only from the labels on the food shelf of a supermarket!

The invention of sanitation

Several cities such as Mohenjo-daro or Harappa had individual « flush toilets ».

In addition to this particular attention that they paid to urban planning, the members of the Indus civilization also seem to have been pioneers of modern hygiene. Some cities, notably Mohenjo-daro, were equipped with small containers (dustbins) in which the inhabitants could deposit their household waste.

Anticipating our « all to the sewer » systems imagined in the 16th century by Leonardo da Vinci for the project envisaged by François I for the new French capital Romarantin, many cities had already public water supply and an ingenious sanitation system.

In many cities, including Mohenjo-daro, Harappa, Lothal and Rakhigari, individual houses or groups of houses were supplied with water from wells. This quality fresh water was used as much for food and personal hygiene (baths, toilets) as for the economic activities of the inhabitants.

Remnants of a bathing room and evacuation system in Lothal.

As an example, the sanitation system of the port city of Lothal (Gujarat, India) where many houses had a bathroom and private brick latrines. The wastewater was evacuated through a communal sewer system that led either to a canal in the port, or to a soaking pit outside the city walls, or to buried urns equipped with a hole allowing the evacuation of liquids, which were regularly emptied and cleaned.

Water from wells was brought to the highest level of the city. From there, it could flow to households, to bathrooms. Once used, the water flow would be evacuated via underground pipes and sewer systems and be conducted outside the city.

Excavations at the Mohenjo-daro site have also revealed the existence of no less than 700 brick water wells, houses equipped with bathrooms and individual and collective latrines. Toilets were an essential element. However, early archaeologists erroneously identified most toilets as post-cremation burial urns or simple cesspools. Many buildings in the city were two or more stories high. Water from the roof and bathrooms of the upper floors was channeled through closed clay pipes or open troughs that emptied, if necessary via the toilets, into the covered sewers underneath the paved street.

This extraordinary achievement is confirmed by a 2016 scientific study, entitled « The Evolution of Toilets Around the World Across the Millennia, » which reports that,

The earliest multi-flush toilets connected to a sophisticated sewage system that have been identified so far were found in the ancient cities of Harappa and Mohenjo-Daro in the Indus Valley, dating from the middle of the third millennium BC. Nearly every dwelling unit in Harappa, Mohenjo-Daro, and Lothal was equipped with a private bath-toilet area with drains to carry dirty water into a larger drain that emptied into the sewer and drainage system.

https://www.mdpi.com/2071-1050/8/8/779/htm

Till now, it are the Minoan (Crete) civilization and China that have been credited for the first use of underground clay pipes for sanitation and water supply. In the Cretan capital Knossos, there was a well-organized water system to bring in clean water, to evacuate wastewater and to provide storm sewers for overflow in case of heavy rains.

In Knossos existed also one of the earliest uses of flush toilets, dating back to the 18th century BCE. The Minoan civilization had stone sewers that were periodically cleaned with clean water. Crete, of course, was a large provider of Copper ore for the entire world in Antiquity and had vast international trade connections.

Religious and cultural worldview

« Great Bath » in Mohenjo-daro, swimming pool or religious temple? In medaillon: artist view.

In the IVC, fertility rituals were probably observed in order to promote a full harvest as well as for women’s pregnancies, as evidenced by a number of figurines, amulets and statuettes with female form.

« King-Priest » found at Mohenjo-daro (4500 BCE).

It is thought that the people, like the Dravidians who some believe were the origin of the Indus Civilization, worshiped a “mother goddess” and possibly a male companion represented as a horned figure in the company of wild animals.

The « Great Bath » at Mohenjo-daro would have been used for purification rites related to religious belief, but it could just as easily have been a public pool for recreation. Our knowledge of the religious beliefs of this culture remains in the realm of mere hypothesis.

The title of the famous statue of the « Priest-King » found at Mohenjo-daro is misleading, as there is no evidence that it is a king or a priest, and it may be a simple cotton trader…

Apart from pottery, certain types of elementary weapons (spearheads, axes, arrows, etc.) and certain tools for practical purposes, two types of artifacts give us cultural clues about Harappean society.

Dancing girl, bronze, Delhi.

First, some figurines, which we try to interpret as devotional objects, seem to be simple toys. For others, they are clearly toys, notably animals (oxen, buffaloes, elephants, goats and even a simple hen), made of bronze or terracotta, mounted on small carts with wheels.

Toys.

Second, among other objects expressing a high level of sensitivity and consciousness, a series of masks, some of which seem inspired by Mongolian masks.

These masks are clearly intended to serve comic or tragic representations and remind us of the ancient masks that have come down to us from classical Greece.

Masks of IVC.

Older than Sumer and Egypt?

Archaeological excavations of the IVC got off to a late start, and it is now believed that some of the achievements and « firsts » attributed to Egypt ( – 3150 BC) and Mesopotamia ( – 4500 BC) may in fact belong to the inhabitants of the Indus Valley civilization.

In May 2016, the report published by a team of researchers from IIT Kharagpur, Institute of Archaeology, Deccan College Pune, Physical Research Laboratory and Archaeological survey of India (ASI), published by the journal Nature, shattered a number of “facts” that were considered unshakeable certainties.

https://www.nature.com/articles/srep26555

Until now, the 900 years of the « mature » phase of the IVC was dated as ranging from 2800 to 1900 BCE. However, the aforementioned Indian study indicates that this civilization was much older than previously thought – it is at least 8,000 years old!

To determine the age of this civilization, researchers dated pottery using a technique called optically stimulated luminescence (OSL) – and found it to be nearly 6,000 years old, the oldest pottery known to date.

Other artifacts have been dated to 8,000 years ago. The results come from a major site excavated at Bhirrana (Haryana, India) that shows the preservation of all cultural levels of this ancient civilization, from the pre-Harappan phase through the Early Harappan to the Mature Harappan period. Bhirrana was part of a high concentration of sites along the mythical Vedic river « Saraswati », now dried up, an extension of the Harki-Ghaggar River in the Thar Desert.

The submerged cities of the Gulf of Khambhat

These new dates converge with the discovery, in January 2002, of ruins of submerged cities in the Gulf of Khambhat (formerly Cambay), off the coast of the state of Gujarat in northwest India.

It is the oceanographers of the National Institute of Ocean Technology (NIOT) of Madras who made this discovery. The team was surveying the muddy sea 30 km off the coast of the state of Gujarat, in the Gulf of Khambhat, to measure the levels of marine pollution. As a routine measure, they recorded acoustic images of the ocean floor.

One of NIOT’s sonar scans of underwater constructions.

It was only several months later, while analyzing the data, that the team realized that they had, without knowing it, obtained images of the ruins of a huge city, sunken 40 meters below sea level. And, at the end of January 2002, after having spent weeks to dredge the site and to bring up more than 2 000 objects, the team of the NIOT was able to make extraordinary revelations.

The ruins stretch for 9 km along the banks of an ancient river, and the remains of a dam can be distinguished. The sunken city shares striking similarities with the sites of the Indus civilization. One of the buildings, the size of an Olympic swimming pool, with collapsed steps, recalls the Great Bath of Mohenjo-daro. Another rectangular monument, 200 m long and 45 m wide, is as large as the acropolis discovered at Harappa. The team of NIOT also glimpsed another building, a kind of granary, made of mud bricks, 183 m long. Near these monumental installations, rows of rectangular buildings that resemble the foundations of ruined houses can be seen, and even a drainage system and roads. On another visit to the site, the team recovered polished stone tools, ornaments and figurines, pottery debris, semi-precious stones, ivory and the fossilized remains of a human spine, jaw and tooth. But the team was not at the end of its surprises.

It sent samples of a fossilized log to two major Indian laboratories specializing in dating methods: the Birbal Sbahni Institute of Paleobotany (BSIP) in Lucknow and the National Geophysical Research Institute (NGRI) in Hyderabad. The BSIP dated it to 5500 BCE, while the NGRI dated the sample much earlier, probably to 7500 BCE.

This dating would make Khambhat the oldest site discovered in India. According to some, this discovery could mark the end of the theory according to which urbanization spreads from Asia from the west towards the Indus. This dating caused intense controversy. Archaeologist G. Possehl points out that there is no reason to believe that the fossilized piece of wood belongs to the ruins of the ancient city, given the strong sea currents in the region, it could have come from elsewhere. NIOT’s team acknowledged the validity of these criticisms and assured that other objects would be subjected to dating methods. It is also a question of understanding how this city was sunk and how it ended up 30 km from the coast.

Harsh Gupta, geologist, thinks that it is a gigantic earthquake which caused the destruction of the city. We are in a high seismic risk area, and the 2001 Bhuj earthquake showed the vulnerability of the region to such phenomena. However, the priority is to definitively establish the age of the sunken city and prove it to be the most exciting discovery of this century.

Historical cradle of textiles

In his book Empire of Cotton, A Global History (2015) Sven Beckert traces in depth the development of what the ancients, intrigued by its resemblance to the feel of wool, called the « wool tree. » While this plant grows in both temperate and tropical climates, it needs an abundance of moisture to thrive fully, which consigns its cultivation to naturally and then artificially irrigated river valleys.

According to the author, « The farmers of the Indus Valley were the first to spin and weave cotton. In 1929, archaeologists found fragments of cotton textiles at Mohenjo-Daro, in present-day Pakistan, dating from 3250 to 2750 BCE. Cotton seeds found in nearby Mehrgarh have been dated to 5000 BCE. Literary references also attest to the antiquity of the cotton industry in the subcontinent. The Vedic scriptures, composed between 1500 and 1200 BCE., allude to the spinning and weaving of cotton…”

Historically, the discovery of the first cotton fragments was made at Mohenjo-daro during an expedition led by Sir John Marshall, Director General of the Archaeological Survey of India from 1902 to 1928. In his book on Mohenjo-daro and the Indus Civilization, Sir Marshall relates that fragments of cloth were wrapped around a silver perfume pot and a salt shaker.

Early forms of Self-government?

Remnants of Mohenjo-daro. Note: the buddhist temple (stupa) on top of the « citadel » is much more recent than the foundation of the city itself.

The fact remains that the political organization of the Indus cities escapes the experts. Because contrary to the Mesopotamian and Egyptian civilizations, the researches realized on the sites of the valley of the Indus did not bring to light any temple or palace of scale. There is no proof either of the existence of a permanent army…

Of what to wonder about the presence or not of a political power. Panic among British archaeologists and geopoliticians always inclined to project their own colonial ideology of aristocratic castes on the rest of the world.

In reality, each city seems to have had its own governor, or citizen council coordinating with other urban areas, all adhering to a number of common principles considered mutually beneficial.

This “Coincidence of Opposites”, of great diversity with perfect similarity, intrigues expert John Keay:

What amazed all those pioneers, and what remains the distinguishing characteristic of the several hundred Harappan sites now known, is their apparent similarity: ‘Our overriding impression is of cultural uniformity, both throughout the several centuries during which Harappan civilization flourished, and over the vast area it occupied.’ The ubiquitous bricks, for example, all have standardized dimensions, just as the stone cubes used by the Harappans to measure weight are also standardized and based on the modular system. The width of roads conforms to a similar module; thus, streets are generally twice as wide as side streets, while main arteries are two or one and a half times as wide as streets. Most of the streets excavated so far are straight and run north to south or east to west. The city plans thus conform to a regular grid pattern and seem to have retained this arrangement through several phases of construction.

Hence, given the existence of a unified system of weights and measures; given the similarity of urban organization as well as the standardization of the size of terracotta bricks for hundreds of cities, it is therefore simply impossible that the every man for himself reigned supreme.

Cradle of democracy?

In 1993, in an article entitled « The Indus Valley Civilization, Cradle of Democracy? », published by the UNESCO Courier, the internationally renowned Pakistani archaeologist and museologist, Syed A. Naqv, who has been fighting for the preservation of the Mohenjo-daro site, attempted to answer the question.

In all the highly developed civilizations of the past – Mesopotamia, the Nile Valley, Anatolia, China – the pervasive influence of an imperial authority can be felt, providing patronage for the arts and directing the evolution of society. A close examination of such an imperial authority over this civilization, which flourished some 5,000 years ago and covered almost twice the area of the civilizations of Mesopotamia and the Nile combined seems to belie the presence of an authoritarian regime, the Indus civilization had a well-disciplined way of life, civic controls and organizational system which could only have stemmed from the kind of “rule by the people” that was exercised in some Greek city-State some 2,000 years later. Did Greece give birth to democracy, or did Greece simply follow a practice developed earlier?

Although there are no large structures acting as centers of authority,

the discoveries made so far suggest that the rule of law extended over an area measuring roughly 1,600 kilometers from the north to the south and more that 800 kilometers from east to west. The main argument in support of this thesis is the existence of well-established norms and standards which would have required the consensus of the people if they had not been imposed by an authoritarian regime. It is impossible to ignore the evidence furnished by the perfect planning of the great city of Mohenjo-daro and the use in its construction of standard-sized bricks 27.94 cm long, 13.96 cm wide and 5.71 cm thick.

In the two large cities of Mohenjo-daro and Harappa, about 600 km distant,

the grid pattern of the street layout uncovered by the archaeological excavations shows that great attention was paid to the security of the inhabitants and suggests the existence of a highly developed and well-monolithic system of civic control.

The same is true of the highly sophisticated sewage system and the existence of

a virtually complete series of highly polished stone weights. Their shapes are cubical, half-cubical, cylindrical and spherical, and very few of them are reported to be defective. They provide yet another proof of a civic authority maintaining consistent commercial standards.

It is not possible to conclude that such « a philosophical conception of democracy exists until the Harappan script is deciphered and written evidence is provided. But the signs are there, and further research in this direction may well establish that ‘government by the people’ originated in the Indus Valley, » the author concludes.

Finally, since this agricultural people, who knew the use of the spears and the arrows but didn’t leave any trace of a major military activity – few weapons nor fortifications with exclusively defensive purpose have been found – , many observers agree to say that this society could have known the longest period of peace of the history of the humanity.

Decay and fall

In two of his books, the Timaeus and the Critias, the Greek philosopher Plato tells the story « certainly true, although strange » of a maritime people with incomparable power: the Atlantes whose civilization and capital he describes in great detail.

Starting 10,000 years before our era from an island located beyond the columns of Hercules, the Atlanteans would have ended up dominating the whole of Africa and Western Europe.

In a passage which is not without recalling the type of political organization which could exist in Mohenjo-daro, Critias specifies that Atlantis was then inhabited « by the various classes of men who deal with the trades and agriculture. The warriors, separated from the beginning by divine men, lived separately, possessing all that was necessary for their existence and that of their children. Among them, there were no particular fortunes; all goods were in common: they demanded from the other citizens nothing beyond what they needed to live, and fulfilled in return all the obligations that our talk of yesterday attributed to the defenders of the fatherland as we conceive them. »

Perhaps speaking metaphorically, Plato states that initially virtuous, the Atlantis civilization would have sunk into excess, arrogance and corruption to the point of being chastised by Poseidon himself for having embarked on one war too many, this time against Athens. And « in the time lapse of a single terrible day and night (…) the island of Atlantis sank into the sea and disappeared ».

At the historical level, the sudden decline of the Indus civilization around 1900 BC remains a mystery. Historians point to aspects of Minoan civilization (Crete) showing astonishing similarities with the IVC, especially watermanagement and early sewer systems in Knossos, lost wax broze casting techniques and bull fighting.

A few traces of fire and destruction, as well as forty skeletons wounded with knives and found without burial at Morenjo-daro, first suggested an invasion by Aryan peoples from Central Asia or the Iranian plateau. « This theory has now been abandoned. We have indeed found no effective trace of massacres or violence on the sites of the Indus Valley, or furniture that could be associated with such populations, » says Aurore Didier, researcher at the CNRS and director of the Indus mission.

Another hypothesis, an inability to strengthen its resilience to climatic chaos. « The samples taken in the northwest of India have shown that the climate there has changed significantly about 2000 years before our era. It is reported that this was also the case in Mesopotamia. « It became more like the dry and arid climate of today, which disrupted the cultivation and, in fact, the trade of the Indus civilizations. The ensuing socio-economic upheaval may have led to the decline of these societies. This hypothesis is the most commonly accepted to date, » says the archaeologist.

The inhabitants would have left their valleys become infertile to migrate to the plains of the Ganges. « This was accompanied by a change in livelihood strategies. The Indus civilization gradually converted to summer cereal crops based on rice and millet, two commodities more able to withstand these new climatic conditions and requiring, for rice, the development of irrigated agriculture, » says Aurore Didier. « It has also forged links with new trading partners.”

So there is no reason to talk about the « collapse » of a society in the sense of collapsologists. It is rather a gradual adaptation to the evolution of the environment, spread over several centuries.

As the excavations of the sites of the Indus Valley civilization continue, new information will undoubtedly contribute to a better understanding of its history and development. Any additional knowledge of this common civilizational legacy will serve in the future as a basis for fraternal cooperation between Pakistan, India and Afghanistan and others.

In the meantime, instead of trying to copy the barbaric « models » of the Mongolian Empire, the Roman Empire or the British Empire, the « elites » of the transatlantic world would do better to draw inspiration from a magnificent civilization that seems to have prospered for 5,000 years without perpetual wars and massacres, but simply thanks to a good mutual understanding, at the national level, between citizens, and thanks to mutually beneficial cooperation with the overriding majority of its distant partners.

The Indus Valley Civilization’s modernity, capable of offering food, shelter, water and sanitation to all, in a mirror image, shows all of us living in the present, how backwards we became.


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Mutazilism and Arab astronomy, two bright stars in our firmament

By Karel Vereycken

(texte original en français)

“The ink of the scholar is holier than the blood of the martyr.”
“Seek knowledge from the Cradle to the Grave.”
“Seek knowledge even as far as China.”

Sayings (Hadith) most often attributed to the Prophet.

PROLOGUE

We live in a time of cruel stupidity. While the history of civilization is characterized by multiple cultural contributions allowing an infinite and magnificent mutual enrichment, everything is done to dehumanize us.

By dint of media coverage of the most extreme crimes, notably by claiming that such and such an abject or barbaric act has been committed « in the name » of such and such a belief or religion, everything is done to set us against each other. If we do not react, the famous thesis of a « Clash of Civilizations », concocted by the British Islamologist Bernard Lewis (Henry Kissinger’s, Zbigniew Brzezinski’s and Samuel Huntington’s mentor) as an evil tool of geopolitical manipulation, will become a self-fulfilling prophecy.

INTRODUCTION

In order to combat prejudices and dangerous misunderstandings about “Islam” (with 1.6 billion believers a non-negligible part of the world’s population), here follows a brief overview of the major contributions of the Arab-Muslim civilization.

By recalling two major contributions of the “Golden Age” of Islam, notably Arab astronomy and mutazilism, what is at stake here is the recognition that –just like Memphis, Thebes, Alexandria, Athens and Rome– Baghdad, Damascus and Cordoba were major crucibles of a universal civilization which is ours today.

While Europe has come to recognize that the invention of printing took place in China long before Gutenberg, and that America was visited way before Christopher Columbus, consensus and group think keeps repeating that the Arabs contributed nothing to the progress of science.

In the 1300 years separating the Greek astronomer from Alexandria, Claudius Ptolemy (ca. 100-178 AD) from the Polish Nicolaus Copernicus (1473-1543), they pretend, nothing but “a black hole”.

In 1958, in his book The Sleepwalkers, British Hungarian writer Alfred Koestler, who helped Sydney Hook to co-found the CIA’s cultural cold war front, the Congress for Cultural Freedom, epitomized western arrogance, writing:

the Arabs had merely been the go-betweens, preservers and transmitters of the heritage. They had little scientific originality and creativeness of their own. During the centuries when they were the sole keepers of the treasure, they did little to put it to use. (…) and by the fifteenth century, the scientific heritage of Islam had largely been taken over by the Portuguese Jews. But the Jews, too, were no more than go-betweens, a branch of the devious Gulf-stream which brought back to Europe its Greek and Alexandrine heritage, enriched by Indian and Persian additions.

Nothing is more false. Definitely, one must be born on the right spot to be allowed to have a seat in the train of history…

Copernicus himself, unlike Koestler, was perfectly familiar with Arab astronomy. In 1543, in his De Revolutionibus, he quotes several Arab scientists, more precisely Al-Battani, al-Bitruji, al-Zarqallu, Ibn Rushd (Averroes) and Thabit ibn Qurra. Copernicus also refers to al-Battani in his Commentariolus, a manuscript published posthumously. Later, the great Johannes Kepler (1571-1630) would also refer to Ibn Al-Haytam in his work on optics.

In reality, Copernicus and even more Kepler, whose creative genius cannot be overrated, came up with answers to questions raised by several generations of Arab astronomers preceding them and whose contribution remains largely ignored and even worse, unexplored. To this day, with about 10,000 manuscripts preserved throughout the world, a large part of which has still not been the subject of a bibliographic inventory, the Arab astronomical corpus constitutes one of the best preserved components of medieval scientific literature waiting to be rediscovered.

Science and religion versus slavery

Miniature of emancipated slave Bilal, Islams first Muezzin.

Before examining the contributions of Arab astronomy, a few words about the intimate link between Islam and the development of science.

According to tradition, it was in 622 AD that the Prophet Muhammad and his companions left Mecca and set out for a simple oasis that would become the city of Medina.

If this event is known as the “Hegira”, an Arabic word for emigration, break-up or exile, it is also because Mohammad broke with a societal model based on blood ties (clan organization), in favor of a model of a shared destiny based on belief. In this new religious and societal model, where each person is supposed to be a “brother,” it is no longer permissible to abandon the poor or the weak as was the case before.

The powerful clans in Mecca did everything they could to eliminate this new form of society, which diminished their influence.

The “Medina Constitution” allegedly proclaimed equality among all believers, whether they were free men or slaves, Arabs or non-Arabs.

The Koran advocates strict equality between Arabs and non-Arabs in accordance with the Prophet, who said, in his farewell address:

“There is no superiority of an Arab over a non-Arab, or of a non-Arab over an Arab, and no superiority of a white person over a black person or of a black person over a white person, except on the basis of personal piety and righteousness.”

(Reported by Al-Bayhaqi and authenticated by Shaykh Albani in Silsila Sahiha no. 2700).

Hence, if after the Prophet’s passing away, slavery and slave trade became a common practice in close to all Muslim countries, he cannot be held accountable. Zayd Ibn Harithah, according to tradition, after having been the slave of Khadija, Muhammad’s wife, was freed and even adopted by Muhammad as his own son.

For his part, Abu Bakr, Muhammad’s companion and successor as the first Caliph (Arab word for “successor”), also freed Bilal ibn-Raba, the son of a former Abyssinian princess who had been enslaved. Bilal, who had a magnificent voice, was even appointed the first muezzin, that is to say the one who calls for prayer five times a day from the top of one of the mosque’s minarets.

The Sultan Ahmed Mosque, popularly known as the Blue Mosque, in Mazar-e-Sharif, Balkh Province, Afghanistan.

Among the first verses revealed to the Prophet Muhammad one finds :

Read! And your Lord is the Most Generous,
Who taught by the pen — Taught man that which he knew not.”

(Surat 96).

The Prophet also states,

The best among you (Muslims) are those who learn the Koran and teach it.”

Other sayings, often attributed to the Prophet, clearly invite Muslims to seek knowledge and cherish science :

The ink of the scholar is more sacred than the blood of the martyr”.
Seek knowledge from the Cradle to the Grave”.
Seek knowledge even as far as China”.

Historical center of Samarkand (Ouzbekistan). The Registan and its three madrasahs.
Astronomical and mathematical notations. Manuscript page from Timbuktu.

The mosque is therefore much more than a place of worship, it is a school of all sciences, where scholars are trained. It serves as a social and educational institution: it may be completed with a madrassa (Koranic school), a library, a training center, or even a university.

As in most religions, in Islam, practices and rituals are punctuated by astronomical events (years, seasons, months, days, hours). Every worshipper must pray five times a day at times that vary depending on where he or she is on Earth: at sunrise (Ajr), when the sun is at its zenith (Dhohr), in the afternoon (Asr), at sunset (Magrib) and at the beginning of the night (Icha). Astronomy, as a spiritual occasion to fine-tune one’s earthly existence according to the harmony of the Heavens, is omnipresent.

As an example, to underscore its importance, July 16, 622 AD, the first day of the lunar year, was declared the first day of the Hegira calendar. And during the eclipse of the sun, mosques host a special prayer.

Islam encourages Muslims to guide themselves by the stars. The Koran states :

And He is the One who made the stars for you
to guide you with them in darkness of the land and the sea”.

With such an incentive, early Muslims could not but feel compelled to perfect astronomical and navigational instruments. As a result, today more than half of the stars used for navigation bear Arabic names. It was only natural that the faithful constantly tried to improve astronomical calculations and observations.

The first reason to do so is that during the Muslim prayer, the worshipper has to prostrate himself in the direction of the Kaaba in Mecca, so he has to know how to find this direction wherever he is on Earth. And the construction of a mosque will be decided according to the same data.

The second reason is the Muslim calendar. The Koran states :

The number of months in the sight of Allah is twelve (in a year)-
so ordained by Him the day He created the heavens and the earth;
of them four are sacred: that is the straight usage.”

Clearly, the Muslim calendar is based on the lunar months, which are approximately 29.5 days long. But 12 times 29.5 days is only 345 days in the year. This is far from the 365 days, 6 hours, 9 minutes and 4 seconds that measure the duration of the rotation of the Earth around the Sun…

Finally, a last challenge was posed by the interpretation of the lunar movement. The months, in the Muslim religion, do not begin with the astronomical new moon, defined as the moment when the moon has the same ecliptic longitude as the sun (it is therefore invisible, drowned in the solar albedo); the months begin when the lunar crescent starts to appear at dusk.

The Koran says: “(Muhammad), they ask you about the different phases of the moon. Tell them that they are there to indicate to people the phases of time and the pilgrimage season.”

For all these reasons, the Muslims could not be satisfied with either the Christian or the Hebrew calendar, and had to create a new one.

Spherical geometry

In order to forecast the phases of the moon, new methods of calculation and new instruments capable of observing them were required. The calculation of the day when the crescent moon starts to become visible again was a formidable challenge for the Arab scholars. To predict this day, it was necessary to be able to describe its movement in relation to the horizon, a problem whose resolution belongs to a rather sophisticated spherical geometry.

It was the determination of the direction of Mecca from a given location and the time of prayers that led the Muslims to develop such geometry. To solve these problems, it is necessary to know how to calculate the side of a spherical triangle of the celestial sphere from its three angles and the other two sides; to find the exact time, for example, it is necessary to know how to construct the triangle whose vertices are the zenith, the north pole, and the position of the Sun.

The field of astronomy has strongly stimulated the birth of other sciences, in particular geometry, mathematics, geography and cartography. Some people like to recall that Platonists and Aristotelians were arguing about rather abstract concepts, each of them believing that reason was sufficient to understand nature. Arab astronomy, on the other hand, played a decisive role in the emergence of a true scientific method by verifying the various hypotheses, by building measuring instruments and astronomical observatories and by rigorously recording observations over many years.

MUTAZILISM

Socrates discussing philosophy with his disciples,
Arabic miniature from a manuscript, Turkey 13th Century.

The question then arises as to where this infatuation with science and astronomy could have come from, in a culture essentially centered on religion?

A first answer comes from the fact that in the 8th century, shortly after the birth of Sunnism (656), Kharidjism (657) and Shi’ism (660), but independently of these currents, a school of Muslim theological and philosophical thought appeared, founded by the revolutionary theologian Wasil ibn Ata (700-748), a current known as “mutazilism” (or motazilism), branded in the West as “the rationalists” of Islam. One explanation of its name came from the fact that the mutazili refused to take part in the internal strife inside factions using theological interpretations for earthly power, the arab word iʿtazala meaning “to withdraw”.

Wasil was born in Medina in the Arabian Peninsula and moved to Basra, now in Iraq. From there he formed an intellectual movement that spread all over the Arab-Muslim world. Many of his followers were merchants and non-Arabs (mawâlî) from Iranian or Aramaic “converted” families, victims of the Omayyad dynasty’s discriminating policies between Arabs and non-Arabs. This hypothesis is sufficient to back the claim of a Mutazilite participation in the overthrow of the Omayyad and that dynasty’s replacement with the Abbasid.

In a clear break with dualistic cosmology (Mazdeism, Zoroastrianism, Manichaeism, etc.), Mutazilism insists on the absolute unity of God, conceived as an entity outside time and space. For them, there is a close relationship between the unity of the Muslim community (Ummah) and the worship of the Lord. The Mutazilites are closely inspired by the Koran, and it is quite wrong to present them as the “free thinkers” of Islam.

However, “we reject faith as the only way to religion if it rejects reason,” the Mutazilite saying goes. Relying on reason (the logos dear to the Greek thinkers Socrates and Plato), which it considers compatible with Islamic doctrines, Mutazilism affirms that man can, outside of any divine revelation, access knowledge.

Just as Augustine, a christian, emphasized man can advance on the path of truth, not only through the Gospel (revelation), but by reading “the Book of Nature”, a reflection and foretaste of divine wisdom. One book of the Bible, The Book of Wisdom, recognizes that

For from the greatness and the beauty of created things
their original author,
by analogy, is seen.

(Book of Wisdom, 13:5)

The Mutazilites differed from their opponents in their teaching that God has endowed man with reason specifically so that he can come to know the moral order in creation and its Creator; that is what reason is for. Reason is central to man’s relationship to God.

In the Fundamentals, the great Mutazilite theologian Abdel al Jabbar Ibn Ahmad (935-1025), whose texts were discovered only in the 1950’s by Egyptian scholars in a mosque in Yemen, begins by positing the primary duty to reason: « If it is asked: What is the first duty that God imposes you? Say to him: Speculative reasoning which leads to knowledge of God, because He is not known intuitively or by the senses. Thus, He must be known by reflection and speculation ».

Therefore, Reason logically precedes revelation. Reason first needs to establish the existence of God before undertaking the question as to whether God has spoken to man. Natural theology mus be antecedent to theology.

Al Jabbar says: « The stipulates of revelation concerning what we should say and do are no good until after there is knowledge of God, » which knowledge comes from reason. « Therefore, » he concludes, « it is incumbent on me to establish His existence and to know Him so that I can worship Him, give Him thanks and do what satisfies Him and avoid disobedience toward Him ».

How does Reason lead man to the conclusion of God’s existance? It is through the observation of the ordered universe that man first comes to know that God exists, says Al Jabbar. As he sees hat nothing in the world is its own cause, but is caused by something else, man arrives at the contingent nature of creation. From there, man reasons to the necessity of a Creator, an uncaused cause.

The concept of an inherent nature in things (tab’) means that God, though he is the First Cause, acts indirectly through secondary causes, such as the physical law of gravity. In other words, God does not immediately or directly do everything. He does not make a rock fall; gravity does. God allows some autonomy in his creation, which has its own set of rules, according to how it was made.

As Mutazilite writer and theologian Uthman al-Jahiz (765-869) stated, every material element has it own nature. God created each thing with a nature according to which it consistently behaves. The unsupported rock will always fall where there is gravitational pull. These laws of nature, then, are not an imposition of order from without by a commander-in-chief, but an expression of it from within the very essence of things, which have their own integrity. Creation is possessed of an intrinsic rationality from the Creator. That is why and how man is able to understand God’s Reason as manifested in his creation (This does not discount God’s ability to supercede natural laws in the case of a miracle). From that standpoint, the act of discovery of the nature and beauty of things, by each human individual, brings him closer to God.

Hence, Muzatilism gives human reason (the faculty of thinking) and freedom (the faculty of acting) a place and importance not only unknown in other trends of Islam but even in most philosophical and religious currents of the time. Against fatalism (“mektoub!” = it was written!), which was the dominant tendency in Islam, mutazilism affirms that the human being is responsible for his acts.

More than five centuries before Erasmus, Mutazilite faith and philosophy offered already the foundations to solve most of the sterile theological disputes that would destroy the Renaissance and throw Europe in the abyss of self-destruction known as the “wars of religion”.

Here are the five Fundamentals (Principles), described by Abdel al Jabbar and summarized in 2015 by economist Nadim Michel Kalife:

Monotheism (Al Tawhid) whose concept of God is beyond the simple intellect of the human mind. That is why the verses of the Koran describing God “sitting” on a throne should be interpreted only allegorically and not literally. Hence the Mutazilites called their opponents anthropomorphists who sought to reduce God who is unknowable to a human appearance. And they concluded that this one detail (!) of the Koran is sufficient to prove that the Koran is not “uncreated” but “created” by Allah, via man, to make it accessible to the believer, and therefore, that it can and should evolve and adapt according to the times and circumstances ;

Divine justice (Adl) is about the origin of evil in our world where God is all-powerful. Mutazilism proclaims free will, where evil is man’s doing and not God’s will, because God is perfect and therefore cannot do evil or determine man to do it. And, if human wrongdoings were the will of God, punishment would lose all meaning since man would be doing nothing but respecting the divine will. This unquestionable logic allowed Mutazilism to refute predestination and the « mektoub » of the Sunni schools;

Promise and threat (al-Wa’d wa al-Wa’id): this principle concerns the judgment of man at his death and that of the last judgment where God will reward the obedient in the heavenly paradise, and punish those who disobeyed him by damning them eternally in the fires of hell;

The intermediate degree (al-manzilatu bayn al-manzilatayn), the first principle opposing Mutazilism to the Sunni schools. A great sinner (murder, theft, fornication, false accusation of fornication, drinking alcohol, etc. ) should be judged neither as a Muslim (as Sunnism thinks) nor as a disbeliever or kâfir (as the Kharidjites think), but considered in an intermediate degree from which, when he dies, he will go to hell if he failed to be redeemed by God’s mercy ;

To order the good and blame the blameworthy (al-amr bil ma’ruf wa al-nahy ‘an al munkar): this principle authorizes even rebellion against authority when it is unjust and illegitimate, to prevent the victory of evil over all. This principle attracted the hatred of the ulama (theologians) and imams (predicators) who saw it as a manouver to weaken their own authority over the faithful. And the Seljuk Turks considered it a serious danger since it called into question their power… over the Arabs.

Mutazilism under the Abbasid

Abbasid Caliphate, 786 to 1194.
Caliph with his advisors. Maqamat of al-Hariri Illustration by Yahyá al-Wasiti, 1237.

In Baghdad, it was with the rise of the Abbasid Caliphate in 749 that Mutazilism gained influence, first under the Caliph Hâroun al-Rachîd (765-809) (“Aaron the Well-Guided”) and then under his son, Al-Ma’mûn (786-833) (“The one to be trusted”). Shortly before his death in 833, the latter made Mutazilism the official doctrine of the Abbasid Empire.

This was too much for the conservative ulama and imams who rebelled against the Caliph’s enlightened vision that created a space for secular society and limited their grip over society. Faced with the revolt, the Abbasid administration (made up largely of Persians), which was won over to Mutazilism, carried out a ruthless crackdown on Sunni (Arab) clerics for fifteen years, from 833 to 848. This bloody persecution left an increasingly bitter taste in people’s minds, especially when the Abbasid power refused to release Muslim prisoners in the hands of the Byzantines if they did not renounce the dogma of the “uncreated” nature of the Koran…

Finally, in 848, Caliph Jafar al-Mutawakkil (847-861), changed course completely and asked the traditionalists to preach hadiths according to which Muhammad had condemned the Mutazilites and their supporters.

Dialectical theology (Kalâm) was banned and the Mutazilites were not any longer welcome at the Baghdad court. This was also the end of the spirit of tolerance and the return of persecution against Christians and Jews. If the craze for science continued, Mutazilism disappeared with the fall of the Abbasids and the destruction of Baghdad by the Mongols in the 13th century.

Mutazilism also influenced Judaism. The Kitab Al-Amanat Wa’l-I’tiqadat – that is, the Book of Beliefs and Opinions – by the tenth-century Jewish rabbinic scholar Saadia Gaon (882-942), who lived in Baghdad, draws its inspiration from Christian theological literature as well as from Islamic models. The Kitab al-Tawhid, the Book of Divine Unity, by Saadia’s Karaite contemporary, Jacob Qirqisani (d. 930), is unfortunately lost.

This makes the German Islamologist Sabine Schmidtke say:

The new tradition of Jewish rational thought that emerged in the course of the ninth century was, in its initial phase, mainly informed by Christian theological literature, both in its content and methodology. Increasingly, specifically Mutazilite Islamic ideas, such as theodicy [*1] and human free will, as well as the emphasis on the oneness of God (tawhid), resonated among Jewish thinkers, many of whom eventually adopted the entire doctrinal system of the Mutazila. The now emerging ‘Jewish Mutazila’ dominated Jewish theological thought for centuries to come.

Brothers in Purity

A Brother in Purity (1287, Epistles of the Brothers in Purity, Süleymaniye Library, Istanbul)

Also worth mentioning in this context, are the Epistles of the Brothers in Purity (Ikwân al-Safâ), an encyclopedia of 52 epistles (dealing with mathematics, natural sciences, rational sciences and theological sciences), composed between the beginning of the ninth and the end of the tenth century and containing common knowledge. The text will be promoted by the Ismailis, an esoteric branch of shiite islam strongly contesting the ruling powers of that time. Produced in Basra, in present-day Iraq, the book, neo-platonic in character, is a collective work. As for the authors, designated under the mysterious name of Brothers of Purity, they belonged to a brotherhood of sages and intellectuals who met regularly to organize sessions of discussion, readings and recitation. Its followers considered that knowledge was an indispensable condition for any spiritual and mystical elevation. Its avant-garde character is apparent in its hymn to tolerance advocating a plurality of paths to salvation. Some experts believe that the Epistles of the Brothers in Purity are the work of a high-level Pythagorean philosopher, a disciple of the mutazilist platonic, al-Kindi.

Leaving aside, therefore, the errors that were very real, it has to be recognized and underscored that the optimistic philosophical vision of Mutazilism (reason, free will, responsibility, perfectibility of man) strongly contributed to the emergence of a true « golden age » of Arab culture and sciences.

The total number of muslim scientists in the 9th Century was larger that the non-muslim scientists in the 15th Century.

Finally, it is not uninteresting to note that today, “neo-Mutazilite” currents are appearing in reaction to obscurantist doctrines and the barbaric acts they provoke. For the Egyptian reformist thinker Ahmad Amin, “the death of mutazilism was the greatest misfortune that befell Muslims; they committed a crime against themselves.”

Bagdad

Artist view of ancient Bagdad. Note the canal that runs through the city and allows it to be integrated into the natural infrastructure of the Tigris River. In reality, the surrounding area was urbanized.

In 762, the second Abbasid caliph Al-Mansur (714-775) (“the victorious”) began construction of a new capital, Baghdad. Called Madinat-As-Salam (City of Peace), it houses the court palace, the mosque and the administrative buildings. Built on a circular plan, it is inspired by previous traditions, notably the one that gave birth to the Iranian city of Gur (current name: Firouzabad).

We are in the heart of fertile Mesopotamia, the “land between the rivers”, essentially the Euphrates and the Tigris, both of which have their source in Turkey. It is here that the Sumerians invented irrigation, agriculture (cereals and livestock) [*2], and writing (3400 years BC), starting in the 10th millennium BC.

Baghdad, a powerful and refined city, reigned over the entire East and became the capital of the Arab world. Crossed by the Tigris River, populated today by some 10 million inhabitants, it remains the largest city in Iraq as well as the second most populated city in the Arab world (behind Cairo in Egypt).

Minaret of the Grand mosque of Samarra that many Westerners believed to be the Tower of Babel…

The Abbasid cities were built on huge sites. The palaces and mosques of Samarra, the new capital from 836, stretch along the banks of the Tigris for 40 kilometers. To match the scale of the sites, monumental buildings were erected, such as the Abu Dulaf Mosque or the Great Mosque of Samarra, which had no equivalent elsewhere. Its curious spiral minaret (52 meters high) inspired in the following centuries the Western representations of the Tower of Babel.

Moreover, by relying on an extremely disciplined and obedient army from Khorassan (a region in north-eastern Iran) [*3], as well as on an elaborate system of stagecoaches and mail distribution, the Abbasid rulers managed to increase their hold on the provincial governors. The latter, who in the time of the Omayyad caliphs paid little tax on the pretext that they had to spend locally for the defense of the caliphate’s borders, now had to pay the taxes imposed by the ruler.

The New “Paper” Road

Thanks to high quanlity paper, arab astronomical research survived.

After the military victory against the Chinese in the battle of Talas (a city in present-day Kyrgyzstan) in 751, the year that marked the most eastern advance of the Abbasid armies, Baghdad opened up to Chinese and Indian cultures.

The Abbasid quickly assimilated a number of Chinese techniques, in particular paper-making, an art developed in Samarkand (capital of Sogdiana, now in Uzbekistan), another stopover city on the Silk Roads. The craftsmen of this city smoothed the paper with an agate stone. The resulting extremely smooth and shiny surface absorbed less ink and as a result, both sides of the same sheet became usable. The Chinese, who had invented silk paper, did not need to smooth their paper because they wrote with brushes and not with pens.

Hâroun al-Rachîd was very interested in the industrial production of paper. He ordered the use of paper in all the administrations of the Empire: it is easier to manufacture, less expensive and more secure than silk, because one cannot easily erase what is written on it. He developed the paper factories of Samarkand and established similar ones in Baghdad, Damascus and Tiberias around 1046 – the paper of Tripoli or Damascus was then referred to, and its quality was considered better than that of Samarkand – in Cairo before 1199, where it was used as a packaging for goods, and in Yemen at the beginning of the 13th century. At the same time, several paper factories were established in North Africa. There were 104 paper factories in Fez, Morocco, before 1106, and 400 paper mills between 1221 and 1240. They will emerge in Andalusia, Spain, in Jativa near Valencia in 1054 and in Toledo in 1085.

Agro-industrial revolution

Watermill in Cordoba, Spain.
Floating watermill, to be attached with cables in a strong current.

The first Abbasid caliphs led the economic transition from the Umayyad model of tribute, booty or the sale of slaves to an economy based on agriculture, manufacturing, trade and taxes. The introduction of more energy dense modes of technologies modes of energy (compared to the former ones), will revolutionize irrigation and agriculture:

–Construction of canals ensuring irrigation and limiting flooding;
–Construction of dams and the exploitation of the mechanical energy they produce;
–Construction of water mills;
–Use of tidal energy;
–Construction of windmills;
–Distillation of kerosene used as fuel for lamps and used since. [*4]

Ancient wind mills in Persia

Industrial uses of water mills in the Islamic world date back to the 7th century. During the time of the Crusades, all provinces of the Islamic world had operating mills, from al-Andalus and North Africa to the Middle East and Central Asia.

These mills performed various agricultural and industrial tasks.

When Erasmus’ follower Cervantes’ Don Quichote starts attacking the windmills of La Mancha, a Spanish region where Arab influence was notable, he not only ironially mocks the cult of chivalry, but also the insane undertaking called the crusades.

Irrigation, inherited from the ancient world (floods of the Nile in Egypt, canals in Mesopotamia, pendulum wells (shadoof), water wheels used to raise water (noria), dams in Transoxiana, Khuzistan and Yemen, underground galleries at the foot of the mountains in Iran (qanat) or in the Maghreb (khettara), is organized thanks to a solid community organization and the intervention of the State.

Abbasid artisans and engineers will develop machines (such as pumps) incorporating crankshafts and use gears in mills and water-lifting machines. They will also use the dams to provide additional power to watermills and water-lifting machines. Such advances will allow the mechanization of many agricultural and industrial tasks and free up the workforce for more creative occupations.

At its peak in the tenth century, Baghdad had a population of 400,000 to 500,000. Its food survival depended entirely on an ingenious system of canals for the irrigation of crops and the management of the recurring floods of the Euphrates and Tigris. Example: the Nahrawan canal, parallel to the Tigris, which allowed the waters of the Tigris to be diverted to protect the capital from flooding.

Agricultural production gains in diversity : cereals (wheat, rice), fruits (apricots, citrus fruits), vegetables, olive oil (Syria and Palestine), sesame (Iraq), roe, rapeseed, flax or castor oil (Egypt), wine production (Syria, Palestine, Egypt), dates, bananas (Egypt), sugar cane.

Breeding remains important for food, for the supply of raw materials (wool, leather) and for transport (camels, dromedaries, horses). Sheep are present everywhere but buffalo farming is developing (marshes of lower Iraq or Orontes). Small poultry, pigeon and bee farms are in high demand. The people’s diet is predominantly vegetarian (rice cake, wheat porridge, vegetables and fruits).

A number of industries will emerge from this agro-industrial revolution, including the first textile factories, the production of ropes, silk and, as noted above, the manufacture of paper. Finally, metalworking, glassware, ceramics, tooling and crafts also experience high levels of growth during this period.

Charlemagne, Baghdad and China

Charlemagne receiving elephant, camel and other gifts sent to him by Hâroun al-Rachîd.

Finally, in the eighth and ninth centuries, seeking to counter the Omayyad and the Byzantine Empire, Abbasid and Carolingian Franks conclude several agreements and alliances.

Three diplomatic missions were sent by Charlemagne to the court of Hâroun al-Rachîd and the latter sent at least two embassies to Charlemagne. The caliph sent him many gifts, such as spices, fabrics, an elephant and an automatic clock, described in the Frankish Royal Annals of 807. It marked the 12 hours with copper balls falling on a plate at each hour, and also had twelve horsemen who appeared in turn at the same intervals.

The same caliph sent a diplomatic mission to Chang’an (now called Xi’an), capital of the Tang dynasty. Chang’an being the eastern terminus of the Silk Road, the western market of Chang’an became the center of world trade. According to the record of the Tang Six Authority, more than 300 nations and regions had trade relations with Chang’an.

Maritime Silk Road

These diplomatic relations with China were contemporary with the maritime expansion of the Muslim world into the Indian Ocean and the Far East. Apart from the Nile, Tigris and Euphrates, navigable rivers were uncommon, so transport by sea was very important. The ships of the caliphate began to sail from Siraf, the port of Basra, to India, the Straits of Malacca and Southeast Asia.

Arab merchants dominated trade in the Indian Ocean until the arrival of the Portuguese in the 16th century. Hormuz was an important center for this trade. There was also a dense network of trade routes in the Mediterranean, along which Muslim countries traded with each other and with European powers such as Venice or Genoa.

The Silk Road crossing Central Asia passed through the Abbasid caliphate between China and Europe. At that time, Canton, or Khanfu in Arabic, a port of 200,000 people in southern China, had a large community of traders from Muslim countries. And when the Chinese Emperor Yongle decided to send his famous flotilla of ships to Africa, he chose Admiral Zheng He (1371-1433), a court eunuch who was born a Muslim. And when in 1497 the Portuguese captain Vasco da Gama reached the Kenyan city of Malindi, he was able to obtain an Arab pilot who took him directly to Kozhikode (Calicut) in India. In short, a sailor who knew how to navigate on the stars.

Scientific and cultural renaissance

Thus, it is under the caliphate of Hâroun al-Rachîd and his son Al-Ma’mûn, that Baghdad and the Abbasids will experience a real golden age, both in the sciences (philosophy, astronomy, mathematics, medicine, etc.) and in the arts (architecture, poetry, music, painting, etc.). For the British writer Jim Al-Khalili, “the fusion of Greek rationalism and Mutazilite Islam will give rise to a humanist movement of a type that will hardly be seen before 15th century Italy.”

In the field of sciences, an assimilation of Hellenistic, Indian and Persian astronomical doctrines took place very early. Several Sanskrit [*5] and Pehlevi [*6] writings were translated into Arabic.

Indian works by the astronomer Aryabhata (476-560), a prominent scientist of the Indian Gupta Renaissance, and the mathematician Brahmagupta (590-668) were cited early on by their Arabic counterparts. A famous translation into Arabic appeared around 777 under the title Zij al-Sindhind (or Indian Astronomical Tables). Sources indicate that this text was translated after the trip of an Indian astronomer invited to the court of the Abbasid caliph Al-Mansur in 770. The Arabs also adopted the sines (inherited from Indian mathematics) which they preferred to the chords used by Greek astronomers. From the same period, a collection of astronomical chronicles compiled over two centuries in Sassanid Persia and known in Arabic as the Zij al-Shah (or Royal Tables).

In the field of music, the Persian-born Arab musician Ishaq al-Mawsili (767-850), among others, can be mentioned. A composer of about two hundred songs, he was also a virtuoso on the oud (a kind of lute with a short neck but no frets). He is credited with the first system of codification of learned Arabic music.

The death of the Prophet Mohammed. Ottoman miniature painting from the Siyer-i Nebi, kept at the Topkapı Sarayı Müzesi, Istanbul (Hazine 1222, folio 414a) . circa 1595. Ottoman miniature painter 492 Siyer-i Nebi 414a

Respecting the visual arts, let us first stress that, contrary to the prevailing opinion, the Koran does not prohibit figurative images. There is no explicitly stated and universally accepted “ban” on images of living figures in Islamic legal texts. On the other hand, Islam, like other major religions, condemns the worship of idols.

From the eighth to the fifteenth century, numerous historical and poetic texts, both Sunni and Shi’a, many of which appeared in Turkish and Persian contexts, include admirable depictions of the Prophet Muhammad. The purpose of these images was not only to praise and pay homage to the Prophet, but represent occasions and central elements for the practice of Muslim faith.

In this respect, the book by the German art historian Hans Belting with the catchy title Florence & Baghdad, Renaissance Art and Arab Science (2011) is not only misleading but downright outrageous. Belting presents “Islam” as an aniconic faith (banning all human and animal representations), while in reality, besides exquisite calligraphy and geometric patterns in search for the infinite, representations of men and animals are an essential part of Islamic artistic expression.

In addition, other religions have experienced strong outbreaks of iconoclasm. For example, and this is one of the reasons why so little is known about ancient Greek painting, between 726 and 843, the Byzantine Empire ordered the systematic destruction of images representing Christ or the saints, whether they were mosaics adorning church walls, painted images or book illuminations.

From there on, Belting, for whom Islam is in essence an aniconic civilization, has great difficulty in demonstrating what he announces in the title: the influence of Arab science (notably Ibn al-Haytam work on human vision) on the Renaissance in Florence (in particular its definition of “geometric perspective”). In fact, presenting himself as an erudite, peaceful and “objective” scholar, Belting’s book feeds into the bellicose thesis of a supposed “Clash” of civilizations, while claiming the opposite.

Frescos of the « desert castle » of Qusayr ‘Amra (Jordan).

The first manifestations of pictorial art in the Arab-Muslim world date back to the Omayyad period (660-750). It is from this period that date the famous “desert castles”, such as Qusayr ‘Amra, in Eastern Jordan. Covered with wall paintings, these palaces reflect a contribution of the Byzantine, but also Persian Sassanid modes of representation. Thus, in the palace of Qusayr ‘Amra, used as a resort by the Caliph or his princes for sport and pleasure, the frescoes depict constellations of the zodiac, hunting scenes, fruits and women in the bath.

In the field of literature, Al-Rashid built up a vast library including a collection of rare books as well as thousands of books that kings and princes of the ancient world offered him.

For example, Kalila and Dimna, also known as the Indian Fables of Bidpaï, one of the most popular works of world literature. Compiled in Sanskrit nearly two thousand years ago, these animal fables, from which Aesop and La Fontaine drew, were translated from China to Ethiopia. Translated into Arabic around 750 by Ibn al-Muqaffa, they were richly illustrated in the Arab, Persian and Turkish worlds. The oldest illustrated Arabic version was probably produced in Syria in the 1200s. The landscape is symbolized by a few elements: a strip of grass, shrubs with stylized leaves and flowers. Men and animals are represented with bright colors and simplified lines.

A true manual for the education for kings, one of the fables evokes the idea,



of creating a university dedicated to the study of languages,
ancient and modern, and to the preservation,
in renewed forms, of the heritage of the human species…

Illustration of Kalima and Dimna.


And at the end of his story, the wise Bidpaï warns the young king Dabschelim:



“I must emphasize this last point: my stories require, at this stage, no extra commentary, wretched imaginings, or vapid guesswork by you, me, or anyone else. The very worst habit would be that of moralizing away the effective substance. Thus the urge to tag tidy little rationalizations, persuasive formulas, intellectual summaries, symbolical labels, or nay other convenient pigeon-holing device, mus be steadfastly resisted. Mental encapsulation perverts the medecine, rendering it impotent. It amount to a bypass around the story’s true destination; to explain away is to forget. It is also a type of hypocrisy – poisonous, an antidote to truth. Thus, let the stories which you can remember do their own work by their very diversity. Familiarize yourself with them, but fiddle with them not.”



Also noteworthy is The Sessions of the poet and man of letters Al-Hariri (1054-1122) [*7], written at the end of the tenth century and which had a tremendous diffusion throughout the Arab world. The text, which recounts the adventures of the brigand Abu Zayd, is particularly suitable for illustration.

Al-Ma’mûn and the Houses of Wisdom (Bayt al-Hikma)

After a violent dispute with his brother who sought to remove him from power, Al-Ma’mûn, the youngest son of Al-Rashid, became the eighth Abbasid caliph in 813. He was particularly interested in the work of scholars, especially those who knew Greek. He gathered in Baghdad thinkers of all beliefs, whom he treated magnificently and with the greatest tolerance. They all wrote in Arabic, a language that allowed them to understand each other. He brought manuscripts from Byzantium to enrich the vast library of his father. Open to scholars, translators, poets, historians, physicians, astronomers, scientists and philosophers, this first public library became the basis of the Bayt Al-Hikma (the “Houses of Wisdom”) combining translation, teaching, research and even public health activities, long before the Western universities. It was here that all known scientific manuscripts of the time, especially Greek writings, were gathered for study.

In Baghdad, this cultural bubbling will not remain confined to the Court but will go down to the street as this description of Baghdad by Ibn Aqul (died in 1119) testifies:

“First there is the large space called the Bridge Square. Then the Birds’ Market, a market where one can find all kinds of flowers and on the sides of which are the elegant stores of the money changers. (…) Then the caterers’ market, the bakers’ market, the butchers’ market, the goldsmiths’ market, unrivaled for the beauty of its architecture: high buildings with teak beams, supporting corbelled rooms. Then there is the huge booksellers’ market, which is also the gathering place for scholars and poets, and the Rusafa market. In the markets of Karkh and the Gate of the Ark, the perfumers do not mix with the merchants of grease and products with unpleasant smells; in the same way the merchants of new objects do not mix with the merchants of used objects.”

Persia, the Nestorians and medicine

Ruins of Gondichapur (Iran)

As a model for the Houses of Wisdom, the Persian influence and precedents are often mentioned. It is true that the Barmakids, a family of Persian origin [*8], had a great influence on the first Abbasid caliphs.

In fact, al-Ma’mûn’s tutor was Jafar ben Yahya Barmaki (767-803), a member of the family of the Armenians and the son of the Persian vizier of his father Al-Rashid. The Persian elite who advised the Abbasid caliphs took a keen interest in the works of the Greeks, whose translation had begun during the reign of the Sassanid king Khosro I Anushirvan (531-579).

The latter founded the Academy of Medicine in Gondichapur. Many Nestorian (Christian) scribes and scholars had taken refuge there after the Council of Ephesus in 431. [*9]

The liturgical language of the Nestorians was Syriac, a Semitic dialect [*10].

A Tang Dynasty Chinese ceramic statuette of a Sogdian merchant riding on a Bactrian camel.

Like the Jews, these Nestorian Christians possessed a cosmopolitan culture and a knowledge of languages (Syriac and Persian) that enabled them to act as intermediaries between Iran and its neighbors. And thanks to their access to the wisdom of ancient Greece, they were often employed as physicians. [*11]

The Academy of Medicine of Gondichapur [*12] had reached its peak in the 5th century thanks to the Syriac scholars expelled from Edessa. In this school, medicine was taught based on the translations of the Greek scholar and physician Claudius Galen. These teachings were put into practice in a large hospital, a tradition taken up in the Muslim world. This school was a meeting place for Greek, Syriac, Persian and Indian scholars, whose scientific influence was mutual. Heir to the Greek medical knowledge of Alexandria, the school of Gondichapur trained several generations of physicians at the court of the Sassanid and later at that of the Muslim Abbasid. As early as 765, the Abbasid caliph Al-Mansur, who reigned from 754 to 775, consulted the head of the Gondichapur hospital, Georgios ben Bakhtichou, and invited him to Baghdad. His descendants will work and teach medicine there. Long after the establishment of Islam, the Arab elites sent their sons to this Nestorian Christian school.

Timothy I (727-823) was the Christian patriarch of the Church of the East (“Nestorian”) between 780 and 823. His first decision was to establish the seat of his church in Baghdad, where it was to remain until the end of the thirteenth century, thus forging privileged links between the Nestorians and the Abbasid caliphs. A man with a good command of Syriac, Arabic, Greek and eventually Pehlevi, Timothy enjoyed the consideration of the Abbasid caliphs Al-Mahdi, Al-Rashid and Al-Ma’mûn.

During his forty-three years of pontificate, the Eastern Church lived in peace. Moreover, the Nestorians played a major role in the spread of Christianity in Central Asia as far as China via the Silk Road. In Central Asia, before the arrival of Islam, it was Sogdian, (the Iranian language of Sogdia and its capital Samarkand) that served as the lingua franca on the Silk Road. [*13]

Translating, understanding, teaching, improving

Scholars at an Abbasid library. Maqamat of al-Hariri Illustration by Yahyá al-Wasiti, 1237.

In Baghdad and Basra, in the Houses of Wisdom, the histories and texts collected after the collapse of the empire of Alexander the Great were translated and made available to scholars, texts initially collated and translated from Syriac into Persian under the aegis of the Sassanid emperors.

The Arab historian and economist Ibn Khaldun (1332-1406), who came from a large Andalusian family of Yemeni origin, paid tribute to this effort to preserve and disseminate the Greek heritage: “What happened to the sciences of the Persians whose writings, at the time of the conquest, were annihilated by order of Omar? Where are the sciences of the Chaldeans, the Assyrians, the inhabitants of Babylon? Where are the sciences that reigned among the Copts in the past? There is only one nation, that of the Greeks, whose scientific productions we possess exclusively, and that is thanks to the care that Al-Ma’mûn took in translating these works.”

These first translations into Arabic made available to the Arab-Muslim world hundreds of texts on philosophy, medicine, logic, mathematics, astronomy, music, etc., from Greek, Pehlevi, Syriac, Hebrew, Sanskrit, etc, including those of Plato, Aristotle, Pythagoras, Sushruta, Hippocrates, Euclid, Charaka, Ptolemy, Claudius Galen, Plotinus, Aryabhata and Brahmagupta.

An illustration of a self-trimming lamp from Ahmad’s (Banu Musa) On Mechanical Devices, written in Arabic.

They were accompanied by reflections, commentaries, translations of commentaries, etc. and gave rise to a new form of literature. According to the Nestorian patriarch Timothy I, it was at the request of the Caliph Al-Mahdi that he translated Aristotle’s Topics from Syriac into Arabic. He also wrote a treatise on astronomy entitled The Book of Stars, now lost.

An astrology and astronomy enthusiast, Al-Ma’mûn once made it a condition of peace with the Byzantine Empire to hand over a copy of the Almagest, Ptolemy’s main work, which was supposed to summarize all Greek astronomical knowledge. In 829, in the upper district of Baghdad, he built the first permanent observatory in the world, the Baghdad Observatory, allowing his astronomers, who had translated the Astronomical Treatise of the Greek Hipparchus of Nicaea (190-120 B.C.), as well as his star register, to methodically monitor the movement of the planets.

Here is what Sâ’id al-Andalusî (1029-1070) tells us about Al-Ma’mûn’s interest in astronomy and his efforts to advance it:

“As soon as Al-Ma’mûn became caliph, his noble soul made every effort to attain wisdom, and to this end he was particularly concerned with philosophy; moreover, the scholars of his time studied in depth a book by Ptolemy and understood the diagrams of a telescope that was drawn therein. So Al-Ma’mûn gathered all the great scholars present throughout the regions of the caliphate, and he asked them to build the same kind of instrument so that they could observe the planets in the same way as Ptolemy had done and those who had preceded him. The object was built and the scholars brought it to the city of al-Shamâsiyya in the region of Damascus in the Sham in the year 214 AH (829 AD). Through their observations they determined the exact duration of a solar year as well as the inclination of the sun, the exit of its center and the situation of its various faces, which allowed them to know the state and positions of the other planets. Then the death of the caliph al-Ma’mûn in 218 A.H. (833) put an end to this project, but they nevertheless completed the astronomical telescope and named it ‘the Ma’mûn telescope’”

Now, let me present you a short list of the main astronomers, mathematicians, thinkers, scholars and translators who frequented the Houses of Wisdom:

Al-Jahiz (776-867). The encyclopedic approach of this Mutazilite is conceived as « a necklace gathering pearls » or as a garden which, with its plants, its harmonious organization and its fountains, represents in miniature the whole universe. He sketches the principle of the evolution of species;

Al-Khwarizmi (780-850), (in Latin Algorithmus). This Persian mathematician and astronomer, according to some a Zoroastrian converted to Islam, would have been a follower of mutazilism. He is best known for having invented the method of solving mathematical problems, which is still used today and which is called algorithm. He studied for some time in Baghdad but it is also reported that he made a trip to India. Al Khawarizmi invented the word algebra (from the Arabic word j-b-r, meaning force, beat or multiply), introduced the Indian numerical system to the Muslim world, institutionalized the decimal system in mathematics, and formalized the testing of scientific hypotheses based on observations;

Sahl Rabban al-Tabari (786-845), a Jewish astronomer and physician whose name means “The son of the rabbi of Tabaristan”. His son Ali was the tutor of al-Razi (865-925). An alchemist who became a physician, he is said to have isolated sulfuric acid and ethanol and was among the first to advocate their medical use. He greatly influenced the conception of hospital organization in connection with the training of future doctors. He was the object of much criticism for his opposition to Aristotelianism;

Al-Hajjaj (786-823) made the first Arabic translation of Euclid’s Elements from Greek. He also translated Ptolemy’s Almagest;

Al-Kindi (801-873) (known as Alkindus), considered the father of Arab philosophy, was a mutazilist. He was a prolific author (about 260 books) and explored all fields: geometry, philosophy, medicine, astronomy, physics, arithmetic, logic, music and psychology. Along with his colleagues, Al-Kindi was entrusted with the translation of the manuscripts of Greek scholars. After the death of Al-Ma’mun in 833, he was considered too much of a mutazilist, fell into disgrace and his library was confiscated;

The Banu Musa (“children of Moses”) brothers, three brilliant sons of a deceased astrologer, friend of the Caliph. Mohammed will work on astronomy; Ahmed and Hassan on the canals linking the Euphrates to the Tigris, a guarantee of the control and optimization of their respective floods. They published the Book of Ingenious Mechanisms, an inventory of new techniques and machines [*14];

Hunayn ibn Ishâk (808-873) (known as Iohannitius). This Nestorian Christian was entrusted by Al-Ma’mun with the task of overseeing the quality of translations; a physician, he translated some of the works of the Greek physician Claudius Galen;

Thabit ibn Qurra (836-901), a Syrian astronomer, mathematician, philosopher and musicologist;

Qusta ibn Luqa (820-912), a Greek Byzantine physician, also a philosopher, mathematician, astronomer, naturalist and translator. A Christian of the Melkite Church, he spoke both Greek (his mother tongue) and Arabic, as well as Syriac. Considered, along with Hunayn ibn Ishaq, as one of the key figures in the transmission of Greek knowledge from Antiquity to the Arab-Muslim world. He was the translator of Aristarchus of Samos for whom the Earth revolved around the Sun and the author of a treatise on the astrolabe;

Ibn Sahl (940-1000), in the footsteps of Al-Kindi, wrote a treatise on burning mirrors and lenses around 984, explaining how they can focus light on a point. His work was perfected by Ibn Al-Haytam (965-1040) (Latin name: Alhazen), whose writings reached as far as Leonardo da Vinci, via the Commentaries of Ghiberti. In Ibn-Sahl, we find the first mention of the law of refraction, later rediscovered in Europe as the law of Snell-Descartes.

Drawn into Bagdad for the opportunities it offered, these scholars generally worked in teams in a totally interdisciplinary spirit. Al-Ma’mûn, monitoring the science projets and noting the contradictions that arose from the translations of Greek, Persian and Indian sources, fixed with the scholars the next great scientific challenges to be met:

–To obtain, thanks to more efficient astronomical observatories, tables of astronomical ephemerides [*15] of greater precision than those of Ptolemy;
–To calculate with precision the circumference of the Earth with more advanced methods than those of the Greek astronomer Eratosthenes (3rd century BC);
–Produce a world map integrating the latest geographical knowledge concerning the distances between cities and the size of the continents;
–Deciphering the Egyptian hieroglyphs that Al-Ma’mûn had discovered during his trip to Egypt.

Translations of Plato

Socrates and his Students, illustration from ‘Kitab Mukhtar al-Hikam wa-Mahasin al-Kilam’ by Al-Mubashir, Turkish School, (13th c).

By asserting that what had advanced science at this period was the rediscovery of Aristotle and his purely empiricist method, one forgets the rediscovery of Plato, whose dialectical and hypothetical method has often done more for science than blind empiricism.

Al-Kindi’s intense involvement in the Platonic tradition is reflected in his summaries of the Apology and the Crito, and in his own works that paraphrase the Phaedo or are inspired by the Meno and the Symposium. The Syrian scientist Ibn al-Bitriq, a member of Al-Kindi’s “circle” in Bagdad, translated the Timaeus.

Otherwise, the House of Wisdom’s top translator, Hunayn ibn Ishaq and his circle translated the Greek physician Claudius Galen’s commentaries on the Timaeus, especially his On what Plato said in the Timaeus in a medical way and his On the doctrines of Hippocrates and Plato. And from Hunayn’s own works, we know that some of his students translated Galen’s lost Greek summaries of Plato’s Cratylus, Sophist, Parmenides, Euthydemus, Republic and Laws. Finally, the physician al-Razi presented and commented on Plutarch’s treatise On the Generation of the Soul in the Timaeus.

Inter-religious dialogue:
possible for some, complicated for others

In the West, the name of Al-Kindi is best known in association with The Apology of Al-Kindi, an anonymous text of the time. It is probably a fictitious dialogue between two believers, one Muslim (Abdallah Al-Hashimi), the other Christian (Al-Kindi), both criticizing the other’s and praising one’s own religion and inviting the other to join him! This dialogue supposedly took place at the time of the caliph Al-Ma’mûn. What we know about the open-mindedness of the Caliph does not contradict this assertion. The earliest known mention of the existence of this Apology came to us from Al-Biruni (973-1048).

The manuscript of Al-Kindi’s Apology was translated into Latin in 1142 at the request of Peter the Venerable (1092-1156), grand abbot of the abbey of Cluny, the most powerful and important in Latin Europe. That same year, after visiting Toledo, he conceived the idea of a systematic refutation of the Muslim religion, which he considered heretical and errant.

Here is how he explains the translation he has just ordered of the Koran (the Lex Mahumet pseudoprophete) by a team of translators (including an Arab) brought together for the occasion:

Whether one gives the Mohammedan error the shameful name of heresy or the infamous one of paganism, one must act against it, that is, write. But the Latins and especially the moderns, the ancient culture perishing, according to the word of the Jews who once admired the polyglot apostles, do not know any other language than that of their native land. So they could neither recognize the enormity of this error nor stop it. So my heart was inflamed and a fire burned in my meditation. I was indignant that the Latins did not know the cause of such a perdition and their ignorance robbed them of the power to resist it; for no one answered, for no one knew. So I went to find specialists in the Arabic language which has allowed this deadly poison to infest more than half the globe. I persuaded them, by dint of prayers and money, to translate from Arabic into Latin the history and doctrine of this wretched man and his very law, which is called Koran”.

Accused hence “the Arabic language which allowed this deadly poison (Islam) to infest more than half of the globe”…

This declaration of war was undoubtedly required to motivate his troops. Let us recall that Eudes de Châtillon, the grand prior of the abbey of Cluny, who will become Pope Urban II in 1088, will be, in 1095, at the origin of the first crusade sending the bandits who ravaged France, to go and wage war elsewhere.

The decline and Al-Ghazali

Aristotle trying to explain the astrolab to his pupils. Miniature from The best rulings and the most precious sayings of Al-Moubachir, Arabic manuscript, 13th Century. Istanbul.

Let us return to the Abbasids. As we have said, with the arrival in power of Al-Mutawakkil in 847, mutazilism was removed from power and the Houses of Wisdom were reduced to simple libraries. This did not prevent a traveller, describing his visit to Baghdad in 891, from reporting that the city contained more than one hundred public libraries. Following the Bayt Al-Hikma model, small libraries were founded on every street corner of the city…

Entangled in endless theological debates between experts and won by sectarianism, the mutazilist elite cut itself off from a people who were losing confidence and eventually welcomed with a sense of relief the obscurantist doctrine of Al-Ghâzalî (1058-1111) (Latin name: Algazel), the worst enemy of the mutazilites.

Al-Ghâzalî proposed a radical solution: philosophy is only right when it agrees with religion – which, according to Al-Ghâzalî, is rare. This leads him to radicalize his position, and to attack more and more the Greco-Arab philosophy, guilty, in his eyes, of blasphemy.

Where someone like the Persian Ibn Sina (980-1037) (Latin name: Avicenna), author of the Canons or Precepts of Medicine (around 1020), crossed Greek philosophy and Muslim religion, Al-Ghazali wanted to filter the first through the second.

Hence his most famous and important work, The Incoherence of the Philosophers, written in 1095. In it, he denounces the “pride” of the philosophers who claim to “rewrite the Koran” through Plato and Aristotle. Their error is above all a logical one, as the title of the book itself indicates, which underlines their “incoherence”: they want to complete the Koran with Greek philosophy, whereas the Koran comes later in history and therefore does not need to be completed. He therefore promotes a much more literal approach to the Koranic text, whereas Ibn Sina defended, cautiously it is true, a metaphorical approach. In truth, it is Aristotelianism and nominalism that triumph. The doctrine opposing Mutazilism became known as Ash’arism.

For Ascharites, to speak of God’s justice and rationality is a double blasphemy, because it amounts to limiting his omnipotence. If God were, as the Mutazilites say, compelled to will what is good, then he would be … compelled, which the Ascharites find theologically unacceptable. Therefore, believers should not admit the idea that God wills good, but submit to the principle that whatever he wills is good because he wills it.

Similarly, it is blasphemous to look for « second causes » in nature, i.e. scientific laws. The world exists because God, at every moment, wants it to exist. Any scientific research, any attempt to apply reason and analysis, is an offense to the divine omnipotence.

For Sébastien Castellion, the rejection of reason by the Ascharite school – and subsequently by much of Muslim civilization – was not an implicit and subterranean process, but an explicit decision based on theological principles. The great jurist Ibn Hanbal, whose school is predominant in Saudi Arabia today, said that « all those who indulge in reasoning by analogy and personal opinions are heretics (…). Accept only, without asking why and without making comparisons. »

The fall of Bagdad

From the eleventh century onward, the Abbasid, whose Empire was fragmenting, called upon the Turkish Seljuk princes to protect them against the Shiites, supported by the Fatimid caliphate of Cairo. Gradually, the Turkish and Mongol troops, coming from Central Asia, ended up governing the security of the Abbasid caliph while letting him exercise his religious power.

Then, in 1258, they deposed the last caliph and confiscated his title of successor of the Prophet, which gave them religious power over the four schools of Sunnism. In order to subdue the Arab and Persian populations, the Seljuk Turks created the madrasa (Koranic school) where the conservative doctrine of Acharite Sunnism was taught to the exclusion of the dialectical Mutazilite theology, considered an ideological threat to Turkish authority over the Arabs.

The Abbasid Empire declined as a result of administrative negligence, abandonment of canal maintenance, flood-induced famine, social injustice, slave revolts, and religious tensions between Shiites and Sunnis. At the end of the 9th century, the Zendj, black slaves (from Zanzibar) who worked in the marshes of the lower Iraq, revolted several times, even occupying Basra and threatening Baghdad. The Caliph restored order at the cost of an unprecedentedly violent repression. The rebels were only crushed in 883 at the cost of many victims. The empire did not recover.

In 1019, the Caliph forbade any new interpretation of the Koran, radically opposing the Mutazilite school. This is a brutal stop to the development of critical thinking and intellectual and scientific innovations in the Arab Empire, the consequences of which are still felt today.

ASTRONOMY

Since the dawn of time (it is the case to say it), man has tried to understand the organization of the stars in the environment near the Earth.

Installations such as Stonehenge (2800 BC) in England allowed the first observers to identify the cycles that determine the place and the exact day when certain stars rise. All these observations posed paradoxes: around us, the earth appears relatively flat, but the Moon or the Sun that we perceive with the same eyes seem spherical. The Sun « rises » and « sets », our senses tell us, but where is the reality?

It seems that Thales of Miletus (625-547 BC) was the first to have really wondered about the shape of the Earth. He thought that the Earth was shaped like a flat disk on a vast expanse of water. Then Pythagoras and Plato imagined a spherical shape, which they considered more beautiful and rational. Finally Aristotle reported some observational evidence such as the rounded shape of the Earth’s shadow on the Moon during eclipses.

The Greek scientist Eratosthenes (276 BC- 194 BC), chief librarian of the Alexandria library, then calculated the Earth’s circumference. He had noticed that at noon, on the day of the summer solstice, there was no shadow on the side of Aswan. By measuring the shadow of a stick planted in Alexandria at the same time and knowing the distance between the two cities, he deduced the circumference of the Earth with a rather astonishing accuracy: 39,375 kilometers against some 40,000 kilometers for current estimates.

Between Ptolemy’s Almagest and Copernicus’ De Revolutionibus, as we have said, Arabic astronomy constitutes “the missing link”.

The original title of Ptolemy’s work is The Mathematical Composition. The Arabs, very impressed by this work, called it “megiste”, from the Greek meaning “very great”, to which they added the Arabic article “al”, to give “al megiste” which became Almageste.

It is important to know that Ptolemy never had the opportunity to re-read his treatise as a whole. After writing the first of the thirteen books of his work, the one on “The Fundamental Postulates of Astronomy”, Ptolemy passed it on to copyists who reproduced it and distributed it widely without waiting for the completion of the other twelve books…

Astrolabe made of brass by mathematician Ibrahim ibn Sa’id al-Shali. It is dated in the year 459 of the Hegira, corresponding to 1067 and was built in a Toledo workshop.

In the end, confronted with observations that called into question his own observations and in order to rectify his errors, Ptolemy wrote another work, after the Almagest, entitled Planetary Hypotheses. The author returned to the models presented in the Almagest while making modifications to the average motions (of the planets) to take into account the latest observations. However, his Planetary Hypotheses went beyond the mathematical model of the Almagest to present a physical realization of the universe as a set of nested spheres, in which he used the epicycles of his planetary model to calculate the dimensions of the universe. Finally, the Almagest also contains a description of 1022 stars grouped into 48 constellations.

Ptolemy also presents stereographic projection invented by Hipparchus, the theoretical basis for the construction of the astrolabe by Arab astronomers.

In the ninth century, when the Arabs became interested in astronomy, knowledge was based on the following principles summarized in the work of Ptolemy:

–Ignoring the assertions of Aristarchus of Samos (310-230 BC) for whom the Earth revolved around the Sun, Ptolemy resumed in the second century AD the thesis of Eudoxus of Cnidus (approx. 400-355 BC) and especially Hipparchus (180 to 125 BC) to assert that the Earth is a motionless sphere placed at the center of the world (geocentrism);

–Ptolemy agreed with Plato, who was inspired by Pythagoras, that the circle was the only perfect form, and that the other bodies turning around the Earth did so according to circular and uniform trajectories (without acceleration or deceleration);

–Yet everyone knew that some planets do not follow these perfect rules. In the 6th century, the neo-Platonic philosopher Simplicius, in his Commentary on Aristotle’s Physics, wrote: “Plato then poses this problem to the mathematicians: what are the uniform and perfectly regular circular motions that should be taken as hypotheses, so that we can save the appearances that the wandering stars present?” ;

–In order to account for the « apparent retrograde motion » of Mars, Hipparchus will introduce other secondary perfect figures, again circles. The articulation and interaction of these “epicycles” gave the appearance of sticking with the observed facts. Ptolemy took up this approach;

–However, the more the precision of astronomical measurements improved, the more anomalies were discovered and the more it was necessary to multiply these interlocking “epicycles”. It quickly became very complicated and inextricable;

–The universe is divided into a sub-lunar region where everything is created and therefore perishable, and the rest of the universe, supra-lunar, which is imperishable and eternal.

Hipparchus of Nicea

Ptolemy’s Almagest in arab with figures of Hipparchus epicycles.

The Arab astronomers, for both religious and intellectual reasons that we mentioned at the beginning of this article, initially discovered and then, on the basis of increasingly detailed observations, challenged Hipparchus’ hypotheses, which were the basis of the Ptolemaic model.

Hipparchus imagined a system of coordinates for the stars based on longitudes and latitudes. We also owe him the use of parallels and meridians to locate the Earth as well as the division of the circumference into 360° inherited from the sexagesimal calculation (base 60) of the Babylonians.

In astronomy, his works on the rotation of the Earth and the planets are numerous. Hipparchus explains the mechanism of the seasons by noting the obliquity of the ecliptic: the inclination of the Earth’s axis of rotation. By comparing his observations with older ones, he discovered the precession of the equinoxes due to this tilt: the Earth’s axis of rotation makes a conical movement from East to West and of revolution 26,000 years. Thus in a few millennia, the North Pole will no longer be found with the North Star (Polaris) but with another star, Vega.

Based on Hipparchus, the Arabs perfected and fabricated an important instrument for measuring positions: the astrolabe. This “mathematical jewel” allows to measure the position of stars, planets, to know the time on Earth. Later, the astrolabe was replaced by more precise and easier to use instruments, such as the quadrant, the sextant or the octant.

With the manuscripts at their disposal in the Houses of Wisdom and the observatories of Baghdad and Damascus, the Arab astronomers had texts of an incredible richness but often in flagrant contradiction with their own observations of the movements of the Moon and the Sun. It is from this confrontation that later discoveries were born. The Arabs introduced a lot of mathematics to solve problems, especially trigonometry and algebra.

The Arab astronomers

In order to present the main Arab astronomers and their contributions, here is an excerpt from J. P. Maratray’s remarkable article L’astronomie arabe.

Al-Khwarizmi (783-850) called Algorithmi.
A mathematician, geographer and astronomer of Persian origin, he was a member of the « House of Wisdom ». He is one of the founders of Arab mathematics, inspired by Indian knowledge, in particular the decimal system, fractions, square roots… He is credited with the term “algorithm”. Algorithms are known since antiquity, and the name of Al-Khwarizmi (Algorithmi in Latin) will be given to these sequences of repeated elementary operations. He is also the author of the term “algebra”, which is the title of one of his works on the subject. He was also the first to use the letter x to designate an unknown in an equation. He wrote the first book of algebra (al-jabr) in which he described a systematic method of solving second degree equations and proposed a classification of these equations. He introduced the use of numbers that we still use today. These “Arabic” numbers are in fact of Indian origin, but were used mathematically by Al-Khwarizmi. He adopted the use of the zero, invented by the Indians in the 5th century, and adopted by the Arabs through him. The Arabs will translate the Indian word “sunya” by “as-sifr”, which becomes “ziffer” and “zephiro”. Ziffer will give “number”, and zephiro, “zero”. Al-Khwarizmi established astronomical tables (position of the five planets, the Sun and the Moon) based on Hindu and Greek astronomy. He studied the position and visibility of the Moon and its eclipses, the Sun and the planets. It is the first completely Arabic astronomical work. A crater of the Moon bears his name.

Al-Farghani (805-880) called Alfraganus (mentioned in Dante’s Commedia).
Born in Ferghana in present-day Uzbekistan, he wrote in 833 the Elements of Astronomy, based on the Greek knowledge of Ptolemy. He was one of the most remarkable astronomers in the service of Al-Ma’mûn, and a member of the House of Wisdom. He introduced new ideas, such as the fact that the precession of the equinoxes must affect the position of the planets, and not only that of the stars. His work was translated into Latin in the 12th century, and had a great impact on the very closed circles of Western European astronomers. He determined the diameter of the Earth, which he estimated at 10500 km. We also owe him a work on sundials and another on the astrolabe.

Al-Battani (850-929) called Albatenius.
He observed the sky from Syria. He is sometimes called “the Ptolemy of the Arabs”. His measurements are remarkably accurate. He determined the length of the solar year, the value of the precession of the equinoxes, the inclination of the ecliptic. He noted that the eccentricity of the Sun is variable, without going so far as to interpret this phenomenon as an elliptical trajectory. He wrote a catalog of 489 stars. We owe him the first use of trigonometry in the study of the sky. It is a much more powerful method than the geometrical one of Ptolemy. His main work is The Book of Tables. It is composed of 57 chapters. Translated into Latin in 1116 by Plato of Tivoli, it will greatly influence the European astronomers of the Renaissance.

Al-Soufi (903-986) known as Azophi.
Persian astronomer, he translated Greek works including the Almagest and improved the estimates of the magnitudes of stars. In 964, he published « The Book of Fixed Stars », where he drew constellations. He seems to have been the first to report an observation of the large Magellanic cloud (a nebula), visible in Yemen, but not in Isfahan. Similarly, we owe him a first representation of the Andromeda galaxy, probably already observed before him. He described it as « a small cloud » in the mouth of the Arabian constellation of the Great Fish. Its name (Azophi) was given to a crater on the Moon.

Al-Khujandi (circa 940- circa 1000).
He was a Persian astronomer and mathematician. He built an observatory in Ray, near Tehran, with a huge sextant, constructed in 994. It is the first instrument able to measure angles more precise than the minute of angle. He measures with this instrument the obliquity of the ecliptic, by observing the meridian passages of the Sun. He found 23° 32′ 19 ». Ptolemy found 23° 51′, and the Indians, much earlier, 24°. The idea of the natural variation of this angle never occurred to the Arabs. They discussed for a long time about the accuracy of the measurements, which made their science advance.

Ibn Al-Haytam (965-1039) called Alhazen.
A mathematician and optician born in Basra in present-day Iraq, he was asked by the Egyptian authorities to solve the problem of the Nile floods. His solution was the construction of a dam towards Aswan. He gave up in front of the enormity of the task (the dam was finally built in 1970!). Faced with this “failure”, he feigned madness until the death of his boss. He made a critical assessment of Ptolemy’s theses and those of his predecessors, and wrote Doubts on Ptolemy. He draws up a catalog of the inconsistencies, without however proposing an alternative solution. Among the inconsistencies he noted were the variation in the apparent diameter of the Moon and the Sun, the non-uniformity of the allegedly circular motions, the variation in the position of the planets in latitude, the organization of the Greek spheres. Observing that the Milky Way has no parallax, he placed it very far from the Earth, in any case further away than Aristotle’s sub-lunar sphere. Despite his doubts, he maintains the central place of the Earth in the universe. Ibn Al-Haytam takes up the work of Greek scholars, from Euclid to Ptolemy, for whom the notion of light is closely linked to the notion of vision: the main question being whether the eye has a passive role in this process or whether it sends a kind of fluid to “interrogate” the object. Through his studies of the mechanism of vision, Ibn Al-Haytam showed that the two eyes were an optical instrument, and that they actually saw two separate images. If the eye sent this fluid, one could see at night, he speculated. He understood that the sunlight reflected off the objects and then entered the eye. But for him, the image is formed on the lens… He took up Ptolemy’s ideas on the rectilinear propagation of light, accepted the laws of reflection on a mirror, and sensed that light has a finite, but very great speed. He studied refraction, the deviation of a light ray as it passes from one medium to another, and predicted a change in the speed of light as it passes. But he could never calculate the angle of refraction. He found that the phenomenon of twilight is related to the refraction of sunlight in the atmosphere, which he tried to measure the height, without success. Already known in antiquity, we owe him a very precise description and the use for experimental purposes of the dark room (camera obscura), a black room that projects an image on a wall through a small hole drilled in the opposite wall. The result of all this optical research is recorded in his Treatise on Optics, which took him six years to write and was translated into Latin in 1270. [*16] In mechanics, he asserted that an object in motion continues to move as long as no force stops it. This is the principle of inertia before the letter. An asteroid bears his name: 59239 Alhazen.

Al-Biruni (973-1048).
Certainly one of the greatest scholars of medieval Islam, originally from Persia, he was interested in astronomy, geography, history, medicine and mathematics, and philosophy in general. He wrote more than 100 works. He was also a tax collector and a great traveler, especially in India, where he studied language, religion and science. At the age of 17, he calculated the latitude of his native town of Kath (in Persia, now in Uzbekistan). At the age of 22, he had already written several short works, including one on cartography. In astronomy, he observed the eclipses of the Moon and the Sun. He is one of the first to evaluate the errors on his measurements and those of his predecessors. He noticed a difference between the average speed and the apparent speed of a star. He measured the radius of the Earth at 6339.6 km (the correct figure is 6378 km), a result used in Europe in the 16th century. During his travels, he met Indian astronomers who supported heliocentrism and the rotation of the Earth on its axis. He will always be skeptical, because this theory implies the movement of the Earth. But he will ask himself the question: « Here is a problem difficult to solve and to refute ». He believes that this theory does not lead to any mathematical problems. He refuted astrology, arguing that this discipline is more conjectural than experimental. In mathematics, he developed the calculation of proportions (rule of three), demonstrated that the ratio of the circumference of a circle to its diameter is irrational (future number Pi), calculated trigonometric tables, and developed methods of geodesic triangulations.

Ali Ibn Ridwan (988-1061).
Egyptian astronomer and astrologer, he wrote several astronomical and astrological works, including a commentary on another book of Claudius Ptolemy, the Tetrabible. He observed and commented on a supernova (SN 1006), probably the brightest in history. Its magnitude is estimated today, according to the testimonies that have come down to us, at -7.5! It remained visible for more than a year. He explains that this new star had two to three times the apparent diameter of Venus, a quarter of the brightness of the Moon, and that it was low on the southern horizon. Other western observations corroborate this description, and place it in the constellation of the Wolf.

From the 11th to the 16th century.
After a first phase, more important observatories were built. The first of them, model of the following ones, is that of Maragheh, in the current Iran. Their purpose was to establish planetary models and to understand the movement of the stars. (…) The school thus constituted will have its apogee with Ibn Al-Shâtir (1304-1375). Other observatories will follow, such as the one in Samarkand in the 15th century, Istanbul in the early 16th century, and, in the West, the one of Tycho Brahe in Uraniborg (Denmark at that time) at the end of the 16th century. The new models were no longer Ptolemaic inspired, but remained geocentric. The physics of the time still refused to put the Earth in motion and to remove it from the center of the world. These models were inspired by the Greek epicycles, keeping the circles, but simplifying them. For example, Al-Tûsî proposes a system comprising a circle rolling inside another circle of double radius. This system transforms two circular motions into an alternating rectilinear motion, and explains the variations of the latitude of the planets. Moreover, it accounts for the variations of the apparent diameters of the stars. But to go further, it will be necessary to change the reference system, which the Arabs refused to do. This change will occur with the Copernican revolution, during the Renaissance, in which the Earth loses its status as the center of the world.

Al-Zarqali (1029-1087) said Arzachel.
Mathematician, astronomer and geographer born in Toledo, Spain, he discussed the possibility of the movement of the Earth. Like others, his writings will be known to Europeans of the sixteenth and seventeenth century. He designed astrolabes, and established the Toledo Tables, which were used by the great Western navigators such as Christopher Columbus, and served as a basis for the Alphonsine Tables. He established that the eccentricity of the Sun varies, more precisely that the center of the circle on which the Sun rotates moves periodically away from or towards the Earth. A crater of the Moon bears his name, as well as a bridge of Toledo on the Tagus.

Omar Al-Khayyam (1048-1131).
Known for his poetry, he was also interested in astronomy and mathematics. He became director of the Isfahan observatory in 1074. He created new astronomical tables even more precise, and determined the duration of the solar year with great accuracy, given the instruments used. It is more accurate than the Gregorian year, created five centuries later in Europe. He reformed the Persian calendar by introducing a leap year (Djelalean reform). In mathematics, he was interested in third degree equations by demonstrating that they can have several solutions (he found some of them geometrically). He wrote several texts on the extraction of the cubic roots, and a treaty of algebra.

Al-Tûsî (1201-1274).
Astronomer and mathematician, born in the city of Tus in present-day Iran, he built and directed the observatory of Maragheh. He studied the works of Al-Khayyam on proportions, and was interested in geometry. On the astronomical side, he commented on the Almagest and completed it, like several astronomers (Al-Battani…) before him. He estimates the obliquity of the ecliptic at 23°30′.

Al-Kashi (1380-1439).
Persian mathematician and astronomer, he witnessed a lunar eclipse in 1406 and wrote several astronomical works afterwards. He spent the rest of his life in Samarkand, under the protection of Prince Ulugh Beg (1394-1449) who founded a university there. He became the first director of the new observatory of Samarkand. His astronomical tables propose values with 4 (5 according to the sources) digits in sexagesimal notation of the sine function. He gives the way to pass from a system of coordinates to another. His catalog contains 1018 stars. He improves the tables of eclipses and visibility of the Moon. In his treatise on the circle, he obtained an approximate value of Pi with 9 exact positions in sexagesimal notation, that is to say 16 exact decimals! A record, since the next improvement of the estimation of Pi dates from the 16th century with 20 decimals. He leaves his name to a generalization of the Pythagorean theorem to any triangles. This is the Al-Kashi theorem. He introduced the decimal fractions, and acquired a great reputation which made him the last great Arab mathematician astronomer, before the West took over.

Ulugh Beg (1394-1449).
Grandson of Tamerlan, prince of the Timurid (descendants of Tamerlan). Viceroy from 1410, he acceded to the throne in 1447. He was a remarkable scholar and a poor politician, a position he delegated to devote himself to science. His teacher was Qadi Zada al-Rumi (1364-1436) who developed in him a taste for mathematics and astronomy. He built several schools, including one in Samarkand in 1420 where he taught, and an observatory in 1429. He worked there with some 70 mathematicians and astronomers (including Al-Kashi) to write the Sultanian Tables published in 1437 and improved by Ulugh Beg himself shortly before his death in 1449. The accuracy of these tables will remain unequaled for more than 200 years, and they were used in the West. They contain the positions of more than 1000 stars. Their first translation dates from around 1500, and was made in Venice.

Taqi Al-Din (1526-1585).
After a period as a theologian, he became the official astronomer of the Sultan in Istanbul. He built an observatory there with the aim of competing with those of European countries, including that of Tycho Brahe. The observatory was opened in 1577. He drew up the Zij tables (“the unbroken pearl”). He was the first to use comma notation, rather than the traditional sexagesimal fractions in use. He observed and described a comet, and predicted that it was a sign of victory for the Ottoman army. This forecast turns out to be erronous, and the observatory is destroyed in 1580… He then devotes himself to mechanics, and describes the functioning of a rudimentary steam engine, invents a water pump, and is fascinated by clocks and optics.

The destruction of the observatory of Istanbul marks the end of the Arab astronomical activity of the Middle Ages. It was not until the Copernican revolution that new progress was made, and what progress! Copernicus and his successors were certainly strongly inspired by the results of the Arabs through their works. Travel and direct contact between scientists of the time were rare. Since Westerners did not understand Arabic, Latin translations probably influenced the West, along with the works of some Greek philosophers who had questioned the central position of the Earth, as Aristarchus of Samos had proposed around 280 BC.

Arab observatories

Scale model of the giant sextant constructed inside the Maragheh observatory (1259).

The modern observatory, in its conception, is a worthy successor of the Arab observatories of the late Middle Ages. Unlike the private observatories of the Greek philosophers, the Islamic observatory is a specialized astronomical institution, with its own premises, scientific staff, teamwork with observers and theoreticians, a director and study programs. They have recourse, as today, to increasingly large instruments, in order to constantly improve the accuracy of measurements.

The first of these observatories was built during the reign of Al-Ma’mûn in Bagdad in the 9th century. We have already mentioned the observatory of Ray, near Tehran and second city of the Abbasid Empire after Baghdad, with its monumental wall sextant dating from 994. To these must be added the observatories of Toledo and Cordoba in Spain, Baghdad and Isfahan.

Finally, the one in Maragheh in the north of present-day Iran, built in 1259 with funds collected to maintain hospitals and mosques. Al-Tusi worked there. Then came the era of the observatory of Samarkand, built in 1420 by the astronomer Ulugh Beg (1394-1449), whose remains were found in 1908 by a Russian team.

Today’s museum in Maragheh, Iran.

Conclusion

Mongol siege of Bagdad of 1258

Much more than the crusades, it will be the Mongol offensives that will devastate entire sections of the Arab-Muslim civilization. Genghis Khan (1155-1227), to the great pleasure of some Westerners, will destroy the Muslim kingdoms of Khwarezm (1218) and Sogdia with Bukhara and Samarkand (1220). The great city of Merv in 1221. In 1238, his son will seize Moscow, then Kiev. In 1240, Poland and Hungary will be invaded. In 1241, Vienna was threatened.

Before bringing down the Song Dynasty in China in 1273, the Mongols turned against the Abbassid.

Hence, the Houses of Wisdom came to a brutal end on February 12, 1258 with the Mongol invasion of Baghdad led by Hulagu (Genghis Khan’s grandson), who killed the last Abbasid caliph Al-Mu’tassim (despite his surrender) and destroyed the city of Baghdad and its cultural heritage. Hulagu also ordered the massacre of the caliph’s entire family and entourage.

Mutazilism was banned and the magnificent collection of books and manuscripts in the House of Wisdom in Baghdad was thrown into the muddy water of the Tigris, which turned brown for a few days because of the inked papers of the books and manuscripts.

One report says that the Mongols exterminated twenty-four thousand scholars and an incalculable number of books were lost. Of Mutazilism, its doctrine was only known through the texts of the traditionalist theologians who had attacked it. It was only the discovery of the voluminous works of Abdel al Jabbar Ibn Ahmad in the 19th century that made it possible to understand the key role played my this current of thought in the Arab renaissance and the formation of current Muslim theology, whether Sunni or Shiite.

Closer to home, the Iraq war of 2003: until then, Iraq was the world’s largest publisher of scientific publications in Arabic. As a result of the chaos caused by a war waged in the name of “democracy” and “the war on terror”, both the National Library and the National Archives were looted and burned. The same happened to the Central Library of Pious Legacies, the Library of the Iraqi University of Sciences, as well as many public libraries in Baghdad, Mosul and Basra. The same was true for the archaeological treasures of the Iraqi Museum and its library. It seems that some people have declared war on civilization.

British troops entering Bagdad in 1917.

NOTES:

  1. A theodicy or « righteousness of God ») is an explanation of the apparent contradiction between the existence of evil and two characteristics peculiar to God: his omnipotence and his goodness.
  2. Sumer. The natural environment of the Sumerian country was not really favorable to the development of a productive agriculture: poor soils with a high content of salts harmful to the growth of plants, very high average temperatures, insignificant rainfall, and flooding of rivers coming in the spring, at harvest time, and not in the fall when the seeds need them to germinate, as is the case in Egypt. It was therefore the ingenuity and relentless labor of Mesopotamian farmers that enabled this country to become one of the granaries of the ancient Middle East. From the 6th millennium BC, the peasant communities developed an irrigation system which gradually branched out to cover a large area, thereby taking advantage of the advantage offered to them by the extremely flat relief of the Mesopotamian delta, where there was no no natural obstacle to the extension of the irrigation canals over tens of kilometers. By regulating the level of water derived from natural watercourses to adapt it to the needs of crops, and by developing techniques aimed at limiting soil salinization (leaching of fields, practice of fallow), it was possible to obtain very high cereal yields.
  3. Khorassan is a region located in northeastern Iran. The name comes from the Persian and means « where does the sun come from ». It was given to the eastern part of the Sassanid Empire. Khorassan is also considered the medieval name of Afghanistan by Afghans. Indeed, this territory included present-day Afghanistan, as well as southern Turkmenistan, Uzbekistan and Tajikistan.
  4. In the 10th century, the Persian medical scholar Mohammad Al-Razi describes the distillation of petroleum to obtain kerosene or « illuminating petroleum » in his Book of Secrets.
  5. Sanskrit is a language of India, among the oldest known Indo-European languages ​​(older even than Latin and Greek). It is notably the language of Hindu religious texts and, as such, it continues to be used as a cultural language, like Latin in centuries past in the West.
  6. Peshlevi or Middle Persian is an Iranian language that was spoken during the Sassanid era. She descends from Old Persian. Middle Persian was usually written using the Pahlevi script. The language was also written using the Manichean script by the Manichaeans of Persia.
  7. Abu Muhammad al – Qasim ibn ’Ali al – Hariri (1054–1122), Arab man of letters, poet and philologist, was born near Basra, in present-day Iraq. He is known for his Oaths and his maqâmât (literally fashions, often translated as assemblies or sessions), a collection of 50 short stories combining social and moral commentary with the brilliant expressions of the Arabic language. If the genre of maqâma was created by Badi’al – Zaman al – Hamadhani (969–1008), it is the sessions of al – Hariri that best define it. Written in a rhyming prose style called saj ’and interwoven with exquisite verse, the stories are meant to be entertaining and educational. Each of the anecdotes takes place in a different city in the Muslim world during the time of al – Hariri. They tell of an encounter, usually at a gathering of townspeople, between two fictional characters: the narrator al – Harith ibn Hammam and the protagonist Abu Zayd al-Saruji. Over the centuries, the work has been copied and commented on many times, but only 13 copies still in existence today have illuminations illustrating scenes from the stories. The manuscript presented here, executed in 1237, was both copied and illustrated by Yahya ibn Mahmud al-Wasiti, often considered the first Arab artist. It contains 99 miniatures of exceptional quality. No other known copy contains so much. The miniatures, recognized for their striking depiction of Muslim life in the 13th century, are considered to be the earliest Arab paintings created by an artist whose identity is known. Al – Wasiti, founder of the Baghdad School of Illumination, was also a remarkable calligrapher, as evidenced by his fine Naskhi style. The almost immediate popularity of the maqâmât reached Arab Spain, where Rabbi Judah al-Harizi (1165-c. 1225) translated the sessions into Hebrew under the title Mahberoth Itiel and subsequently composed his own Tahkemoni, or Hebrew sessions. . The work was also translated into many modern languages.
  8. The Barmecids or Barmakids are members of a Persian nobility family originally from Balkh in Bactria (north of Afghanistan). This family of Buddhist religious (paramaka means in Sanskrit the superior of a Buddhist monastery) who became Zoroastrians and then converted to Islam provided many viziers to the Abbasid caliphs. The Barmakids had acquired a remarkable reputation as patrons and are regarded as the main instigators of the brilliant culture which then developed in Baghdad.
  9. The Christological thesis of Nestorius (born c. 381 – died 451), Patriarch of Constantinople (428-431), was declared a heretic and condemned by the Council of Ephesus. For Nestorius, two hypostases, one divine, the other human, coexist in Jesus Christ. From the Eastern Church, Nestorianism was one of the historically most influential forms of Christianity in the world throughout late Antiquity and the Middle Ages, to India, China and Mongolia.
  10. Syriac (a form of Aramaic, the language of Christ) is alongside Latin and Greek the third component of ancient Christianity, rooted in Hellenism but also descended from Near Eastern and Semitic antiquity. From the first centuries, in a movement symmetrical to that of the Greco-Latin Christian tradition towards the west, Syriac Christianity developed towards the east, as far as India and China. Syriac is still today the liturgical and classical language (a bit like Latin in Europe) of the Syriac Orthodox, Syriac Catholic, Assyrian, Chaldean and Maronite Churches in Lebanon, Syria, Iraq and South India. Where is. Finally, it is the branch of Christianity most in contact with Islam in which he continued to live.
  11. In South-West Asia, the Greek influence remained alive in several cities under Christian influence: Edessa (now Urfa in Turkey), at the time capital of the county of Edessa, one of the first Eastern Latin states, the closest to the Islamic world; Antioch (now Antakya in Turkey); Nisibe (now Nusaybin in Turkey); Al-Mada’in (ie “The Cities”), an Iraqi metropolis on the Tigris, between the royal cities of Ctesiphon and Seleucia on the Tigris and Gondichapour (now in Iran) whose ruins remain. To this must be added the cities of Latakia (in Syria) and Amed (today Diyarbakir in Turkey) where there were Jacobite centers (Christians of the East, but members of the Syriac Orthodox Church, not to be confused with the Nestorians).
  12. The Gondishapour Academy was located in present-day Khuzestan province in southwestern Iran, near the Karoun River. It offered the teaching of medicine, philosophy, theology and science. The faculty was well versed not only in Zoroastrian and Persian traditions, but also taught Greek and Indian languages. The Academy included a library, an observatory, and the oldest known teaching hospital. According to historians, the Cambridge of Iran was the most important medical center in the Old World (defined as the territory of Europe, the Mediterranean and the Near East) during the 6th and 7th centuries.
  13. Sogdian is a middle Iranian language spoken in the Middle Ages by the Sogdians, a trading people who resided in Sogdiana, the historic region encompassing Samarkand and Bukhara and covering more or less present-day Uzbekistan, Tajikistan and northern Afghanistan. Before the arrival of Arabic, Sogdian was the lingua franca of the Silk Road. Sogdian traders settled in China and Sogdian monks were among the first to spread Buddhism there. As early as the 6th century, Chinese rulers appealed to the Sogdian elite to resolve diplomatic, commercial, military and even cultural issues, prompting many Sogdians to migrate from Central Asia and China’s border regions to major Chinese political centers.
  14. The Book of Ingenious Machines contains a hundred machines or objects, most of them due to the Banou Moussa brothers or adapted by them: funnel, crankshaft, conical ball valves, float valve and other hydraulic regulation systems, mask gas and ventilation bellows for mines; dredge, variable jet fountains, hurricane lamp, auto-off light, auto-powered; automatic musical instruments including a programmable flute.
  15. Astronomical ephemeris: registers of the positions of stars at regular intervals.
  16. Ibn Al-Haytam. In 2007, during a conference at the Sorbonne, I explored the use, by the Flemish painter Jan Van Eyck (early 15th century), of a bifocal geometric perspective, wrongly qualified as « primitive », erroneous and intuitive, actually inspired by the work and binocular experiences of the Arab scholar Ibn Al-Haytam (Alhazen). The latter drew on the work of his predecessors Al-Kindi, Ibn Luca and Ibn Sahl. Alhazen was widely known in the West thanks to the translations of the Franciscans of the University of Oxford (Grosseteste, Bacon, etc.). See summary biography.

SUMMARY CHRONOLOGY:

  • 310-230 BC.: Life of the Greek astronomer Aristarchus of Samos;
  • 190-120 BC.: life of the Greek astronomer Hipparchus of Nicaea;
  • v. 100-160 : life of Roman astronomer Claudius Ptolemy;
  • 700-748: life of Wasil ibn Ata, intellectual founder of Mutazilism;
  • 750: beginning of the Abbasid dynasty;
  • 751: Abbasid victory against the Chinese at the battle of Talas (Kyrgyzstan);
  • 763: founding of Baghdad by Caliph Al-Mansur;
  • 780: Timothy I, patriarch of the Nestorian Christian church in Baghdad;
  • 780-850: life of the Arab mathematician al-Kwarizmi;
  • 786 to 809: caliphate for 23 years of Haroun al-Rachîd, legendary hero of the Thousand and One Nights tales. Development of mutazilism;
  • 801-873: life of the mutazilist and Platonic philosopher Al-Kindi;
  • 805-880: life of Al-Farghani, treatise on the Astrolabe;
  • 813-833: caliphate of Al-Ma’mûn (20 years);
  • 829: creation of the first permanent astronomical observatory in Baghdad followed by that of Damascus;
  • 832: creation of the public library and creation of the Maisons de la Sagesse;
  • 833: shortly before his death, Al-Ma’mûn decrees the created Koran and has mutazilism adopted as the official doctrine of the Abbasids;
  • 836: transfer from the capital to Samarra;
  • 848: the mutazilites removed from the Baghdad court;
  • 858-930: life of Al-Battani, known as Albatenius;
  • 865-925: life of translator and doctor Sahl Rabban al-Tabari;
  • 869-883: revolt of the Zanj (black slaves from Zanzibar);
  • 892: return from the capital of the Abbasids to Baghdad;
  • 965-1039: life of Ibn Al-Haytam, known as Alhazen;
  • 973-1048: life of Al-Biruni;
  • 1095: first crusade;
  • 1258: Baghdad sacked by the Mongols;
  • 1259: creation of the Maragheh Astronomical Observatory (Iran);
  • 1304-1375: life of Ibn Al-Shâtir;
  • 1422: creation of the Astronomical Observatory of Samarkand, capital of Sogdiana;
  • 1543: Polish astronomer Nicolas Copernicus publishes his De Revolutionibus;
  • 1917: British troops enter Baghdad;
  • 2003: looting and destruction by systematic arson of libraries and museums during the Iraq war.

BIBLIOGRAPHY:

  • Mutazilism, website of the Association for the Renaissance of Mutazilite Islam (ARIM);
  • Antoine Le Bail, Who are the mutazilites, sometimes called the « rationalists » of Islam ?, website of the Institut du Monde Arabe (IMA), Paris;
  • Richard C. Martin, Mark R. Woodward with Dwi S. Atmaja, Defenders of Reason in Islam, Mu’tazilism from Medieval School to Modern Symbol, Oneworld, Oxford, 1997;
  • Rober R. Reilly, The Closing of the Muslim Mind, How Intellectual Suicide Created the Modern Islamist Crisis, ISI, Wilmington, 2011;
  • Nadim Michel Kalife, The Lights of the First Centuries of Islam, on financialafrik.com, 2019;
  • Mahmoud Azab, A Vision of the Universality of Arab-Islamic Civilization, Oberta de Catalunya University, www.uoc.edu;
  • Sabine Schmidke, The People of Monotheism and Justice: Mutazilism in Islam and Judaism, Institute for Advanced Study, 2017;
  • Malek Chebel, Slavery in the Land of Islam, Fayard, Paris 2012;
  • Jacques Cheminade, Sublime words and idiocy by Nasr Eddin Hodja;
  • Jacques Cheminade, Proposals for an inter-religious dialogue;
  • Hussein Askary: Baghdad 767-1258 A.D., Melting Pot for a Universal Renaissance, Executive Intelligence Review, 2013;
  • Hussein Askary: The Beauty of the Islamic Renaissance, the Elephant Clock, S&P website;
  • Dr Subhi Al-Azzawi, The House of Wisdom of the Abbasids in Baghdad or the beginnings of the University, pdf on the internet;
  • Dimitri Gutas, Greek Thought, Arab Culture. The movement of Greco-Arabic translation in Baghdad and primitive Abbasid society (2nd-4th / 8th-10th centuries), Aubier, Paris 2005;
  • Jim Al-Khalili, The House of Wisdom, How Arab Science Saved Ancient Knowledge and Gave Us the Renaissance, Pinguin, London 2010;
  • Jonathan Lyons, The House of Wisdom, How the Arabs Transformed Western Civilization, Bloomsbury, London 2009;
  • Pastor Georges Tartar, Islamo-Christian Dialogue under Caliph Al-Ma’mûn, Les épitres d’Al-Hashimi and d’Al-Kindî, Nouvelles Editions Latines, Paris, 1985;
  • Al-Kindî, On First Philosophy, State University of New York Press, Albany, 1974;
  • Marie Thérèse d´Alverny, The transmission of philosophical and scientific texts in the Middle Ages, Variorum, Aldershot 1994;
  • Danielle Jacquart, Françoise Micheau, Arab medicine and the medieval West, Maisonneuve, Paris 1990;
  • Juan Vernet Gines, What culture owes to the Arabs of Spain, Sindbad, Actes Sud, Paris, 2000;
  • Karen Armstrong, Islam, A Short History, Phoenix, London, 2002;
  • Muriel Mirak Weisbach, Andalusia, a gateway to the Renaissance;
  • Régis Morelon, Eastern Arab Astronomy between the 8th and 11th Century, in History of Arab Sciences, edited by Roshdi Rashed, Vol. 1, Astronomy, Theoretical and Applied, Seuil, Paris, 1997;
  • George Saliba, Planetary Theories in Arab Astronomy after the 11th Century, in History of Arab Sciences, edited by Roshdi Rashed, Vol. 1, Astronomy, Theoretical and Applied, Seuil, Paris, 1997;
  • Roshi Rashed, Geometric Optics, in History of Arab Sciences, edited by Roshdi Rashed, Vol. 2, Mathematics and physics, Seuil, Paris, 1997;
  • Jean-Pierre Verdet, A History of Astronomy, Seuil, Paris, 1990;
  • J. P. Maratray, Arab Astronomy, on the Astrosurf.com website;
  • Jean-Pierre Luminet, Ulugh Beg – The Astronomer of Samarkand, 2018;
  • Kitty Ferguson, Pythagoras, His Lives and the Legacy of a Rational Universe, Walker publishing Company, New York, 2008;
  • Sir Thomas Heath, Aristarchus of Samos, The Ancient Copernicus, Dover, New York, 1981:
  • A. T. Papadopoulo, Islam and Muslim Art, The Art of Great Civilizations, Mazenod, Paris, 1976;
  • Olag Grabar, Art and Culture in the Islamic World, Arts & Civilizations of Islam, Köneman, Cologne, 2000;
  • Christiane Gruber, Images of Muhammad in Islam, Afkar / Ideas, Spring 2015;
  • Hans Belting, Florence & Baghdad, Renaissance art and Arab science, Harvard University Press, 2011;
  • Dominique Raynaud, Ibn al-Haytham on binocular vision: a precursor of physiological optics, Arabic Sciences and Philosophy, Cambridge University Press (CUP), 2003, 13, pp. 79-99;
  • Jonathan M. Bloom, Paper Before Print: The History and Impact of Paper in the Islamic World, Yale University Press, 2001;
  • Karel Vereycken, Jan Van Eyck, a Flemish painter in Arabic optics, S&P website;

 
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Vieillard oriental

Vieillard oriental, Karel Vereycken, eauforte sur zinc, 6e état, janvier 2018.

6e état, décembre 2017.

 

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