The Indus Silk

Even though China formally started exporting it only after 119 BCE, silk, dated to much earlier period, has been found in Germany, Egypt, Mediterranean, and Central Asia. This silk, it was explained, came through contact with the Chinese. Now there is a new explanation: sericulture was known to other civilizations and a new paper reveals that the Indus people definitely knew about it.
The new evidence which comes from Harappa and Chanhu-daro show silk threads almost a millennium earlier than previously believed; the earliest find for silk in India was a thread found in Nevasa (1500 BCE). Now three silk fragments, which came from wild silk moth species, dated to the mature Harappan period (2600 – 1700 BCE) show that wild silk was used not just in China.
Previously it was believed that silk and the associated technologies — removing gum from silk and collecting silk strands on to a bobbin — were known only to the Chinese, but now we know that the Indus people too knew about it around the same time. The Chinese knew about silk weaving from 1600 BCE and had silk textiles a millennium back; the Indus discoveries are only few fragments used to connect copper-alloy bangles.
So for all the years of Mature Harappan, we have only three strands of silk. Does this mean that silk was not so important there or that it was not preserved well in the region or that the archaeologists were not trained to look for it specifically.? This finding, hopefully, is the beginning of new discoveries which will answer all those questions.
Reference: New Evidence for Silk in the Indus Valley

Flood Myths Revisited

The Atra-Hasis and Matsya Purana have something in common: flood stories which destroy mankind and one among the men, favored by the gods, becomes the progenitor of mankind. The floods mentioned in the epics are of gargantuan scale, capable of wiping off all life forms. According to the Atra-Hasis, the flood lasted for seven days; I am not sure about Matsya Purana.
Ten thousand years back when the glaciers melted and the sea levels rose, various neolithic settlements must have got wiped off. Are the flood myths an accurate depiction of those events or an exaggeration?
It was known previously that the rise in sea level created a connection between the Mediterranean Sea and the Black Sea. Before this the Black Sea was a fresh water lake. It was also believed that the Black Sea rose 150 to 195 feet, submerged human settlements, and drove the ancient farmers out.
New evidence — based on carbon dating mollusk fossils — suggest that the Black Sea rose only 15 to 30 feet. It also suggests that the land that was submerged was less: 2,000 square kilometers, not 70,000 square kilometers as believed.

“So if this is true, it means that the magnitude of the Black Sea flood was 5 or 10 meters but not 50 to 60 meters,” said Giosan. “Still, having flooded the Black Sea by 5 meters can have important effects, for example, drowning of the Danube Delta and putting an area of 2,000 square kilometers of prime agricultural land underwater. This has important implications for the archaeology and anthropology of southern Europe, as well as on our understanding of how the unique environment of the Black Sea formed.” [Danube Delta Holds Answers to ‘Noah’s Flood’ Debate ]

See: Multimedia presentation

Indian History Carnival – 14

The Indian History Carnival, published on the 15th of every month, is a collection of posts related to Indian history and archaeology.

  1. After reading Nicolas Ostler’s Empires of the Word: A Language History of the World, Hari writes about Sanskrit.
  2. Venetia Ansell has an interview with Prof. Lakshmi Thathachar who was a Professor of Sanskrit at Bangalore University on why the modern world needs Sanskrit.
  3. The Michael Wood documentary, The Story of India, which was telecast in six parts on PBS mentioned the connection between bird songs and mantras. varnam asks how old are our mantras?
  4. The previous post was based on a paper written by Frits Staal of UC Berkeley. Sandeep analyzes the paper to say, “We clearly see that the “pre-language era” is a shrewd excuse to push Staal’s ill-understood concoction about Mantras.”
  5. R S Krishna explains Harappan town planning and techniques on teaching this to children.
  6. Chandragupta Maurya’s son Bimbisara once requested Antiochus of Syria to send him figs, Greek wine and a Greek teacher. He got the first two, but a note came back saying that Greek law does not permit the sale of professors. But when Alexander came to Punjab, he took a Jain guru named Calanus back with him. Maddy has that story.
  7. How did ancient India deal with crime? Feanor surveys literature to find the answers.
  8. In an article about Somnath,Manish Khamesra writes about Mahmud of Ghazni’s attacks on the temple and Sardar Patel.
  9. In 1857, the British offended Hindu and Muslim sentiments and paid a price. A similar incident happened on July 10, 1806 and the Indian garrison at Vellore broke in revolt. Even before these two incidents, on April 14, 1721, more than 150 Englishmen were massacred in Kerala by a combined force of Nairs and Muslims. “After all, history teaches us that it teaches us nothing !”, writes Calicut Heritage.
  10. Sir Mirza Mohammed Ismail served as the Diwan of Mysore since 1926, of Jaipur since 1941 and of Hyderabad during independence. Murali Ramavarma has his biography. Murali writes, “Sir Mirza was a Shia Muslim by birth but he encouraged Sanskrit learning, and helped the Hindu and Christian institutions too and attended to the needs of the society with an impartial outlook holding the interest of the state above that of the individual.”
  11. Maiji who first visited Madras in 1945 writes about the differences she sees now.

If you find any posts related to Indian history published in the past one month, please send it to jk AT varnam DOT org or use this form. Please send me links which are similar to the ones posted, in terms of content.The next carnival will be up on March 15th.
See Also: Previous Carnivals

The Peaceful Indus People

In chapter 1 of the companion book of the PBS series The Story of India, which talked about bird songs and mantras, Michael Wood writes about Indus Valley. Excavations in the Indus Valley have, so far, not answered this question: how was the city administered? For 700 years, who managed trade or planned the cities? Who established the script, the standard weights and pottery.? We don’t know.

Besides these usual items, Wood brings up something which is rarely given prominence: Unlike Egypt or Mesopotamia, there is no evidence of war in the Indus.

But, the Indus cities had fortified walls. Archaeologists have found arrowheads, and spearheads, besides a small number of daggers and axes. Sir Mortimer Wheeler believed that the tools could have been used for hunting and not warfare. The walls, it is believed, were built to protect the city against flood or to impress. There is no evidence of swords or body armor or military equipment like swords or catapults. Even the Indus art does not depict warfare or killing. Probably the residents were concerned with defense and had no experience in warfare.

All this caused Mark Kenoyer to say it is possible that the Indus civilization, which evolved over a period of 4000 years from the local cultures of Mehrgarh, managed to resolve conflict without warfare. If so, this would be a unique example of living among the bronze age civilizations – an early example of ahimsa.

Why didn’t the Indus cities fight among themselves? One explanation is that they did a good job in the distribution of resources. The distribution was uneven, but most households had more than adequate supply of food hence mitigating the need to become a communist.

Still this claim of “peaceful” Indus is a bit over the top. Kenoyer himself is skeptic suggesting that battles could have been recorded on perishable material, like painted cloth or clay.

Reference:

Noisy Epics

The other day Amit at Digital Inspiration had a post about iSerenity, which “offers a relaxing web-based environment with soothing sounds and images designed to reduce stress and calm nerves.” If this site was available to ancient Babylonians and Sumerians, Western civilization would have got different myths.
The Babylonian epic Enuma Elis describes the reason for a major conflict – noise. Apsu, one of the primeval gods cannot sleep since his offsprings are making noise. So he has a simple solution: kill his noisy offsprings. The dossier containing this plan gets leaked and one of the offsprings, Ea, comes up with a brilliant solution: kill the person who is complaining. The offsprings win and Apsu gets killed.
Before the Enuma Elis, the Sumerians had a epic called Atra-Hasis. In this epic, the gods want to destroy humans because they have become noisy and the gods can’t get sleep. They try various tricks – plague, famine, and, drought; nothing works. The gods then take the draconian step of unleashing a flood. Again the dossier containing the plan gets leaked to Atra-Hasis by one of the gods, Enki. Thus Atra-Hasis builds a boat, carries animals and survives the flood which lasted seven days.
The Enuma Elis are Atra Hasis are important for their creation myths as well. In Enuma Elis, the creation of humans is a minor plot device. They were created by one of the gods, Marduk, to free gods from hard labor and this was the final act of creation. Atra-Hasis too explains how humans were created – from clay and wisdom. All these literary tropes, including that of a man surving the flood, were adopted by later near east religions.
References: MMW2 (Lecture 3), Enuma Elis , Atra-Hasis, Creation Stories of the Middle East By Ewa Wasilewska

How old are our mantras?

The Michael Wood documentary, The Story of India, which was telecast in six parts on PBS mentioned something interesting in the very first episode. Wood talked about the Out of Africa theory – the migration of humans 70,000 years back, from Africa along the shores of Arabian Sea into South India – and mentioned that all non-Africans in the world are descendents of these Indians. Nothing new in that.

Going in search of clues left by those ancient migrants in South India, he arrived at the house of a Kerala brahmin who is teaching his son mantras the way it has been done for millenia. Wood then shows the 2006 athirathram – a 12 day vedic ceremony – and mentions that certain sounds recited in this ceremony takes years to learn but have no meaning. When brahmins were asked for meaning, they did not know. They simply knew that it was handed down.
Since man is a speaking animal, we have always assumed that any word man says is in language, but some of those mantras are not in any known language. Hence these sounds, which are still recited today, are considered to have evolved before human speech.
Of Birds and Humans
Frits Staal of UC Berkeley  thought that the claim that mantras are older than language was “preposterous.” In 1975 he helped finance an athirathram, which had not been conducted since 1956 due to financial constraints. Analyzing the sounds he came to the conclusion that mantras could belong to a pre-language era since:

  • Mantras are language independent: Anything in language can be translated whereas mantras remain the same in all languages.
  • Mantras, even though they seem to be in a language like Sanskrit, are not used for their meaning.
  • Mantras follow patterns, like refrain, which is not seen in language.

The clincher for the pre-language theory came when the sound patterns were analyzed to find the nearest equivalent in nature. The technique followed was like this: He took a mantra like Jaimintya Gramageyagana (45.2.1) which goes:

vo no ha bu / idam idam pura ha bu / pra va pra
vas ia ia ha yi / nina ninava tarn u vo ha bu / stiisa vi
sakhtaia Ya ha vi / dramutalyayi / o vi la /

It was split into patterns like AB / CB / DE/.. where A = vo no and B = ha bu. Comparing it to bird songs, it was found that the patterns were similar and such patterns were not found any where else.
As a side effect, by comparing the patterns of mantras and certain birds, it is possible to find which birds influenced the mantras. There is research which found patterns in the composition of Igor Stravinsky and a bird usually found in the region where he worked. Thus some of the mantra sounds were found to be inspired by the songs of Blyth’s Reed Warbler and Whitethroat – two birds which migrate to India.
There are examples of bird-human interaction in Vedas and Upanishads. Some vedic chools have been named after birds — like kausika after the owl or taittiriya after the partridge. D. D. Kosambi believed that Vedic clans were totemic. Then there is the story of Satyakama Jabala in Chandogya Upanishad who:
Text not available
Critiques
Having established this similarity between bird song and mantra, the theory then takes off with a life of its own. There are vedic rituals for making rain and curing illness and similarly birds sing for building nests or attracting females; there are rituals and bird songs for various occasions. Then it was also found that bird sing – believe it or not – just for pleasure. So Staal extends the theory to say that, similar to skiing, dancing and music, mantras and rituals too are done for pleasure.
Between Staal’s athirathram in 1975 and Wood’s in 2006, one was held in 1990 near Thrissur which I attended  for a day. This athirathram, which was extensively covered in Malayalam newspapers, was highly respectful and the words I heard were not “playful” or “pleasurable.” I can understand singing for pleasure, but am yet to meet a priest who said, “it’s a weekend and raining outside, let’s do a ganapati homam for pleasure.”
Prof. Staal thinks that not just the sounds, but rituals too are meaningless. But Wood writes that mantras, “work on emotions, the physiology, and the nervous system.” According to Wood, these rituals are a away of achieving heightened mental and physical state. So I am not sure if this research is of the Ganesha phallus quality. If you have seen any paper or book by anyone else, please leave a comment.
Postscript: Kosambi’s concept that Vedic clans were named after animals was criticized inThe Early Brahmanical System of Gotra and Pravara (Purusottama Pandita, John Brough). They wrote that it is equivalent to saying an Englishman with the surname Fox belongs to a totemic clan of that animal.  Instead they suggest that the bird name could have come from the clan name.

Reference:
Michael Wood has a companion book to the program. More details can be found in Staal’s paper, Mantras and Bird Songs, in which one quoted sentence reads: “there are mechanisms in existence which reinforce economical perfection in motor skills independently of the attainment of the ultimate biological goal in whose pursuit the learned movement is developed.” Staal’s book on this topic is available in limited preview mode in Google Books.

[serialposts]

Battle of the Ten Kings

The Dasharajnya War or “war of 10 kings” was a turning point in the history of India because it firmly re-established the dominance of the Puru-Bharata Dynasty over smaller royal dynasties and tribal chieftans over the Sapta-Sindhu region going west towards present-day Afghanistan/Persia and east towards Uttar Pradesh. This Puru-Bharata Dynasty provided the continuity of leadership which is documented in the ancient scriptures of Sanathana Dharma (Hinduism) — particularly the Rigveda. The fact that this great story, which I believe must be raised to the standard of ‘epic’ in all fairness, is relatively unknown and forgotten is surprising and raises questions. When did this war occur? Where did this all happen? Why is it important and why should it be raised to the level of India’s two existing epics, namely the Ramayana and the Mahabharata?[Hindu Council UK (email from Rajeev Srinivasan)]


Niraj Mohanka
has a long article on the Battle of the Ten Kings and dates it to 2900 BCE. One line in the article — the gifts given by Sudas to his priest Vasishta (2 chariots, 4 horses with gold trappings) — will make you wonder if there were horses at that time? Didn’t Aryans bring horses to India.? To find answers it is worth reading The Horse and the Aryan Debate by Michel Danino along with this.

[serialposts]

The Kerala School and Lord of Guruvayoor

All Malayalees know Melpathur Narayana Bhattithiri (1559-1632 ) and his famous composition — Narayaneeyam — still sung in Guruvayoor temple. The immediate story that comes to mind is his tiff with his contemporary Poonthanam, whose judge turned out to be Guruvayoorappan
While Melpathur was composing Narayaneeyam in Sanskrit, Poonthanam was writing Jnanapana in Malayalam. This was a time when Malayalam was considered inferior to Sanskrit. When Poonthanam went to show his poem to Melpathur, he refused to see it; treating him like a groundling, Melpathur asked Poonthanam to learn Sanskrit.
The next day, Melpathur came to sing ten slokas of Narayaneeyam before Guruvayoorappan and he met a boy who found many mistakes in his composition. The boy vanished and a celestial voice announced, “Poonthanam’s bhakthi (devotion) is more pleasing to me than Melpathur’s vibhakthi (learning or knowledge in Sanskrit grammar)”.
So goes the legend.
Is there any truth to this story or is it something which which was written to show that Malayalam was as good as Sanskrit? Would a Sanskrit scholar like Melpathur make mistakes in his composition.? What we know is two pieces of information about Melpathur from which we will have to deduce information.
While Narayaneeyam is Melpathur’s most famous composition, he also wrote sreepaada saptati in praise of Bhagavathi, Manameyodayam on Mimamsa, and Kriyakramam on nambudiri rituals. Less known is the fact that Melpathur was connected to the Kerala school of mathematics. Melpathur was the student of Achyuta Pisharati (c. 1550-1621) who was the student of Jyestadeva, the author of yuktibhasha. Melpathur is not know for astronomical models or mathematical proofs but, according to Wikipedia, for Prkriya-sarvawom, which sets forth an axiomatic system elaborating on the classical system of Panini. This is believed to be written in sixty days[1].

Kerala School of Mathematics(teachers and students)

So would a person, who understood Panini, be sloppy with his work? Maybe. Sreedhara Menon, in his Survey of Kerala History, writes about Revathi Pattathanam, an annual assembly of scholars held in Calicut. Those who displayed exceptional knowledge in debates were awarded the title Bhatta. Melpathur was denied the Bhatta title six times before he won it eventually[1].
There is little information about Poonthanam’s later life, but much more about Melpathur and his royal patrons. But we don’t know anything Melpathur’s first drafts of Narayaneeyam and so it is hard to pin down the narrative historically.
Though Poonthanam’s Jnanappana too is still sung in houses in Kerala, the title of father of Malayalam goes to Thunchatthu Ezhutachan — a contemporary of Poonthanam and Melpathur — who translated Ramayana, and Mahabharata and standardized the Malayalam alphabet [2].
References:
[1] A Sreedhara Menon, A Survey of Kerala History
[2] S. Ramanath Aiyar, A Brief Sketch of Travancore, the Model State of India

A Conference on the Sindhu-Sarasvati Valley Civilization

A conference titled “International Conference on the Sindhu-Sarasvati Valley Civilization: A Reappraisal” is being held in Los Angeles on Feb. 21 and 22, 2009.

The aim of the conference is to discuss, reconsider and reconstruct a shared identity of the Sindhu (Indus) and Saraswati cultures, using archaeological and other scientific evidence as well as Vedic literature. For two days eminent archaeologists, linguists, anthropologists, historians, religious studies specialists and geneticists will present and discuss their findings on the salient issues of the Sindhu-Saraswati civilization and assess its contribution to Indian culture.  The conference hopes to inform the general educated public about the contribution of these early South Asian cultures to world civilization, and about the issues and problems of interpretation related to them.

The title of the conference itself will cause alarm among one section of historians who believe that Indus Civilization and Vedic culture have nothing in common. Now the ritual will start with the precision of the south west monsoon and words will start pouring – Hindutva, Gujarat, rich NRIs, minorities, oort cloud etc. This is despite the fact that some of the participants — Jonathan Mark Kenoyer (University of Wisconsin), Jim G. Shaffer (Case Western Reserve University), Carl C. Lamberg-Karlovsky (Harvard University), Edwin Bryant (Rutgers University), Maurizio Tosi (University of Bologna, Italy) and Nicholas Kazanas (Omilos Meleton Cultural Institute, Athens) —- are not even Hindus.

These conferences, whether ideology driven or not, are happening regularly in India and United States. Also the rivalry between the AIT camp and the opponents has resulted in a great debate which would have been one sided otherwise. For a historian who is not bound by dogma, these discourses are educational, since it brings out data, which would have remained buried.
Note: The conference is free for public.

Op-Ed in Mail Today: Kerala Astronomers and Eurocentrism


(This op-ed was published in Jan 25, 2009 edition of Mail Today/ PDF)
To commemorate the International Year of Astronomy in 2009, P Govinda Pillai, a Communist Party of India (Marxist) ideologue, in an article in the Malayalam newspaper Mathruboomi, examined the legacy of Copernicus, Galileo and Kepler. He also bought out an important topic – Eurocentrism in history writing – due to which we know about the work done on telescopes by Galileo, Hans Lippershey and Roger Bacon, but almost nothing by the Arab scientist al-Hassan.
Mr. Pillai stopped there. He wrote nothing about the contributions of mathematicians and astronomers from his state, Kerala, in developing the heliocentric model and calculating planetary orbits. It is not Mr. Pillai alone who is at fault. This apathy, this ignorance, this refusal to acknowledge Indian contributions — all point to a deep malaise in our historical studies. For perspective on this issue, we need to understand the contributions of Indian astronomers and decide if we should be like Confucians during the time of the Ming dynasty or 21st century Peruvian archaeologists.
The Kerala School of Mathematics
In 1832, a paper, “On the Hindu quadrature of a circle”, was read at the Royal Asiatic Society. This paper by Charles M. Whish of the East Indian Company Civil Service described eight mathematical series quoting from a text called Tantra Sangraham (1500 CE) which he had discovered in Kerala. These series were also mentioned in Yukti Dipika by Sankara Variyar and Yukti-Bhasa by Jyestadevan; both those authors had learned mathematics and astronomy from Kellalur Nilakanta Somayaji, the author of Tantra Sangraham. Some of those series were linked to Madhavan of Sangramagramam (1340-1425 CE). These mathematicians who lived between the 14th and 16th centuries formed the Kerala School of Mathematics and were proof that Indian mathematics did not vanish after Bhaskaracharya.
The importance of the Kerala school can be appreciated only by understanding the Copernican revolution. The contribution of Copernicus was two fold: first he improved
the mathematics behind the Ptolemaic system and second, changed the model from geocentric to heliocentric. The heliocentric model was proposed as early as the third century BCE by the Greek astronomer Aristarchus of Samos and so it is the math that made the difference.
In his Tantra Sangraham, Nilakanta revised the Indian planetary model for the interior planets, Mercury and Venus and for this he formulated equations to find the center of the planets better than both Islamic and European traditions. He also described the planetary motion in which Mercury, Venus, Mars, Jupiter and Saturn moved in eccentric orbits around the Sun, which in turn went around the Earth. Till Nilakanta, the Indian planetary theory had different rules for calculating  latitudes for interior and exterior planets. Nilakanta provided a unified rule. The heliocentric model of Copernicus did not alter the computational scheme for interior planets; it would have to wait till Kepler (who wrote horoscopes to supplement his income).
In their propensity to solve astronomical problems, mathematicians of the Kerala school developed concepts like Gregory’s series and the Leibniz’s series. The hallmark of earlier texts, like those of Madhava, were instructions and results without proofs or explanations. It is believed that the proofs and explanations were passed orally and hence rarely recorded. Yuktibhasha, the text written by Jyesthadeva, contain proofs of the theorems and the derivations of the rules, making it a complete text of mathematical analysis and possibly the first calculus text.

Lessons from Peru
Our education system, based on content from Western textbooks, have rarely questioned Western accomplishments. But Peruvians thought differently. When Peruvian archaeologists revisited the history written by the victors they discovered that the romantic tales woven by the Conquistadors were – well, tales. According to the original story, Francisco Pizarro, a Spaniard arrived in Peru in 1532 with few hundred men. Few weeks after their arrival, in a surprise attack, they killed the Inca king Atahualpa and took Cusco, the Inca capital. Four years later the Inca rebellion attacked Cusco and the new city of Lima.
On August 10, 1536, while Copernicus and the Kerala school were revolutionizing the world of astronomy half a world away, Francisco Pizzaro watched as tens of thousands of Incas closed in on Lima. With just a few hundred troops, Pizzaro had to come up with a strategy for survival. The Spaniards lead a cavalry attack and first killed the Inca general and his captains. Devoid of leadership the Incas scattered and once again the Spaniards won.
Recent archaeological excavations found a different version of this story. Out of the many skeletons found in the grave near Lima, only three were found to be killed by Spanish weapons; the rest by Incas. A testimony by Incas who were present in the battle was found in the Archive of the Franciscans at the Convent of San Francisco de Lima, which mentioned that it was not a great battle, but just a few skirmishes. Pizzaro was helped by a large army of Indian allies and the battle was not between the Spaniards and Incas, but between two Inca groups. It was also found that size of rebels were not in tens of thousands, but in thousands and there was no cavalry charge.
Thanks to the work of native archaeologists dramatic accounts of a small band of heroic Europeans subduing the Incas has a new narrative.
Lessons from China
Instead of following such examples and popularizing the work of Indian mathematicians, we have been behaving like Confucians at the court of the 15th century Ming emperor Zhu Di who erased evidence of the large fleets that sailed as far as the Swahili coast. While the world knows about the accomplishments of Europeans like Vasco da Gama, Columbus, Magellan and Francis Drake, little is known about Zheng He who arrived in Calicut eighty years before da Gama commanding a fleet of three hundred ships carrying 28,000 men; Vasco da Gama arrived with three ships and less than two hundred men.
Between 1405 to 1433, Zheng He’s fleet made seven voyages —- three to India, one to Persian Gulf and three to the African coast — trading, transporting ambassadors, and establishing Chinese colonies. Following the death of the emperor who  commissioned these voyages, the Confucians at the court gained influence. Confucius thought that foreign travel interfered with family obligations and Confucians wanted to curtail the ambitious sailors and the prosperous merchants.
So ships were let to rot in the port and the logs books and maps were destroyed. The construction of any ship with more than two masts was considered a capital offense. A major attempt at erasing a proud chapter in their history was done by the natives themselves.
Appreciating our stars
The goal is not to diminish the accomplishments of Copernicus or Galileo but to note that no less important accomplishments were achieved by the Kerala school either before or around the same time. Interestingly in the West, Copernican revolution was considered a movement into science to which the Church, obstinate in religious dogma, would take umbrage. In India no one was burned at the stake or put under house arrest for proposing a heliocentric model.
Instead of accepting the astronomical concepts of the Church on faith, Galileo investigated them and found new truths. Extrapolating that to historical studies we need to critically examine the Eurocentric history like the Peruvians and popularize the work of our ancestors. In this International year of astronomy, if we do not inform everyone about our great astronomers, who will ?
Postscript: In the midst of all this Eurocentric history, as a surprising exception to the norm, the only educational institution where one can take an elective course in The Pre-History of Calculus and Celestial Mechanics in Medieval Kerala is Canisius College, New York.
References: This credit for this article goes to Ranjith, a reader of this blog. He alerted me to Govinda Pillai’s article and then sent various research papers and articles about the Kerala School. He made me read Modification of the earlier Indian planetary theory by the Kerala astronomers, 500 years of Tantrasangraha, Madhavan, the father of analysis, Whish’s showroom revisited and The Pre-History of Calculus and Celestial Mechanics in Medieval Kerala.
Dick Teresi’s book Lost Discoveries, which I first read in 2003, covers the ancient roots of modern science and has sections on Indian mathematicians and astronomers. I remember buying The Crest of the Peacock and lending it to a mathematician friend; the book is now inside a singularity. The Great Inca rebellion was covered in the excellent PBS documentary of the same name. References for Zheng He can be found in an earlier article. In 2000, the University of Madras organized a conference to celebrate the 500th anniversary of Tantrasangraha. The papers presented at this conference can be found in 500 Years of Tantrasangraha
Finally, Rajiv Malhotra on Eurocentrism of Hegel, Marx, Mueller, Monier Williams, Husserl.
(images via wikipedia and indiaclub)