{"id":190,"date":"2020-03-18T20:01:03","date_gmt":"2020-03-18T14:31:03","guid":{"rendered":"http:\/\/ckraju.net\/blog\/?p=190"},"modified":"2020-03-18T20:01:03","modified_gmt":"2020-03-18T14:31:03","slug":"did-indian-learn-trigonometry-from-greeks-responses-to-the-aryan-race-conjecture-in-the-african-context-and-the-relevance-to-indology","status":"publish","type":"post","link":"https:\/\/ckraju.net\/wordpress_F\/?p=190","title":{"rendered":"Did Indian learn trigonometry from Greeks?  Responses to the Aryan race conjecture in the African context, and the relevance to Indology"},"content":{"rendered":"<p>Recently, I <a href=\"https:\/\/twitter.com\/IIASShimla\/status\/1238433794538930176\">presented my talk<\/a> on <a href=\"http:\/\/ckraju.net\/papers\/ckr-indology-abstract.pdf\">\u201cPre-colonial appropriations of Indian ganita: epistemic issues<\/a>\u201d. This was at a round table at IIAS Shimla which replaced the now-postponed <a href=\"https:\/\/www.iccr.gov.in\/conference-seminar\/re-examining-indology-retrospect-and-prospect\">conference on Indology<\/a>.  My talk was primarily about the inferior math we teach in school today based on the European misunderstanding of the Indian ganita which Europe imported.<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/ckraju.net\/gif\/Shimla-Indology-lecture.gif\" alt=\"Shimla Indology lecture\" \/><\/p>\n<p>But as a sidelight, I took up a novel aspect of the Aryan race conjecture. Indologists have so far talked about the Aryan conjecture solely in the Indian context. However, I pointed out the need to link this discussion also to the Aryan race model as it applies to the African context. In particular, to the issue of the Aryan model vs Ancient model as in Martin Bernal\u2019s <em>Black Athena, vol. 1: The fabrication of ancient Greece 1785-1985<\/em>. (The date of 1785 alludes to William Jones whose philological researches  started these wild speculations on race.)<\/p>\n<p>The fabrication of ancient Greece has a direct bearing on the history of Indian math. But first let us understand how racists did it.<\/p>\n<p><strong>Racist history<\/strong><\/p>\n<p>Bernal\u2019s key point was that after 1785 racist historians systematically rewrote history to appropriate all achievements of Black Egyptians to White Greeks. This aligned with George James\u2019 <em>Stolen Legacy:<\/em> <em>Greek philosophy is stolen Egyptian philosophy<\/em>. But instead of philosophy, Bernal applied it, for example, to architecture where the evidence of Greeks copying Egyptians is not easily contested: the so-called Greek architecture of columns is manifestly copied from Egypt and Iran (Persepolis).<\/p>\n<p>Bernal made only scattered remarks on math and science, perhaps out of deference to his father J. D. Bernal, who wrote his famous (but now hopelessly dated) volumes on the history of science.  However, after going through my PHISPC volume <em>Cultural Foundations of Mathematics<\/em>, Bernal (Jr) strongly encouraged me to look at the related issues of concern to the history of math where undue credit has been given to Greeks (as explained in an earlier blog  \u201cGreediots and Pythagoras\u201d, which also provides the relevant background to this post).<\/p>\n<p>One point in my above book relates closely to Afrocentrist concerns about undue credit to Greeks in the history of math.<\/p>\n<p><span style=\"font-style: normal;\">Thus, <\/span><span style=\"font-style: normal;\">my point (<\/span><span style=\"font-style: normal;\">later <\/span><span style=\"font-style: normal;\">summarised <\/span><span style=\"font-style: normal;\">e.g. in <a href=\"http:\/\/ckraju.net\/books\/Is-Science-Western-in-Origin.html\">Is Science Western in Origin?<\/a>) was that <\/span><span style=\"font-style: normal;\"><strong>the church falsified history <\/strong><\/span><span style=\"font-style: normal;\"><strong>even <\/strong><\/span><span style=\"font-style: normal;\"><strong>before racist <\/strong><\/span><span style=\"font-style: normal;\"><strong>historians<\/strong><\/span><span style=\"font-style: normal;\">. <\/span><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">T<\/span><span style=\"font-style: normal;\">his process <\/span><span style=\"font-style: normal;\">of falsifying history <\/span><span style=\"font-style: normal;\">went virulent during the Crusades against Muslims. <\/span><span style=\"font-style: normal;\">(Bernal agreed with me here.) <\/span><span style=\"font-style: normal;\">The Toledo mass  translations of Arabic texts into Latin, beginning 1125, involved learning from the books of the religious enemy. The church, which had earlier consistently burnt heretical books, <\/span><span style=\"font-style: normal;\">needed to justify <\/span><span style=\"font-style: normal;\">learning from <\/span><span style=\"font-style: normal;\">the books of the religious enemy. It provided this justification through the coarse falsehood that all scientific knowledge <\/span><span style=\"font-style: normal;\">in Arabic books came from the <\/span><span style=\"font-style: normal;\">sole<\/span><span style=\"font-style: normal;\"> \u201cfriends of Christians\u201d, the early Greeks. <\/span><span style=\"font-style: normal;\">As such, it claimed that knowledge <\/span><span style=\"font-style: normal;\">in Arabic books<\/span><span style=\"font-style: normal;\"> as a Christian inheritance: <\/span><span style=\"font-style: normal;\">and that Arabs contributed nothing to it. <\/span><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">Later racist historians <\/span><span style=\"font-style: normal;\">modified the church thesis by <\/span><span style=\"font-style: normal;\">insist<\/span><span style=\"font-style: normal;\">ing<\/span><span style=\"font-style: normal;\"> that the author<\/span><span style=\"font-style: normal;\">s<\/span><span style=\"font-style: normal;\"> of Greek books, even in Africa, <\/span><span style=\"font-style: normal;\">were<\/span><span style=\"font-style: normal;\"> white-skinned, <\/span><span style=\"font-style: normal;\">hence claimed it as part of White achievements.<\/span><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">The racist historian Florian Cajori is an example of how religious chauvinism was absorbed into racist chauvinism. <\/span><span style=\"font-style: normal;\">No evidence <\/span><span style=\"font-style: normal;\">exists, and none was <\/span><span style=\"font-style: normal;\">needed!<\/span><\/p>\n<p><span style=\"font-style: normal;\">Egyptian and Persian texts were translated into Greek, by Alexander and the Ptolemy dynasty, but <\/span><span style=\"font-style: normal;\">any material coming from these texts was <\/span><span style=\"font-style: normal;\">all attributed <\/span><span style=\"font-style: normal;\">by racist historians<\/span><span style=\"font-style: normal;\"> to Greeks. Western historians against Afrocentrism, such as Lefkowitz, falsely state that there is no evidence for such translation. <\/span><span style=\"font-style: normal;\">As I pointed out in my <a href=\"http:\/\/ckraju.net\/unisa\">UNISA lectures<\/a>, <\/span><span style=\"font-style: normal;\">Zoroastrians have been complaining about the burning and Greek translation of their texts for over 2000 years. <\/span><span style=\"font-style: normal;\">Western historians <\/span><span style=\"font-style: normal;\">rightly assume that their <\/span><span style=\"font-style: normal;\">parochial <\/span><span style=\"font-style: normal;\">readers would be unfamiliar with those texts. Obviously, also, f<\/span><span style=\"font-style: normal;\">or the G<\/span><span style=\"font-style: normal;\">r<\/span><span style=\"font-style: normal;\">eediotic brain it is <\/span><span style=\"font-style: normal;\">equally<\/span><span style=\"font-style: normal;\"> easy to <\/span><span style=\"font-style: normal;\">imagine<\/span><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">(when required)<\/span><span style=\"font-style: normal;\"> that <\/span><span style=\"font-style: normal;\">skin color relates to the language of the text: thus, <\/span><span style=\"font-style: normal;\">any Indian author writing in English, such as this one, must be white-skinned! <\/span><span style=\"font-style: normal;\">There are no early original Greek sources available, but even if they were a claim of <\/span><span style=\"font-style: normal;\">any <\/span><span style=\"font-style: normal;\">Greek originality <\/span><span style=\"font-style: normal;\">(e.g. on Sphere and Cylinder, attributed to Archimedes), <\/span><span style=\"font-style: normal;\">would need proof, <\/span><span style=\"font-style: normal;\">since this is also found in the Ahmes papyrus <\/span><span style=\"font-style: normal;\">from a thousand years earlier<\/span><span style=\"font-style: normal;\">, as pointed out by Diop. <\/span><span style=\"font-style: normal;\">Lefkowitz has only some utterly foolish comments to offer claiming that Archimedes compared the area of a cylinder to the volume of a sphere. That is the typical standard of racist historians.<\/span><\/p>\n<p><strong><span style=\"font-style: normal;\">R<\/span><span style=\"font-style: normal;\">elevance to Indology<\/span><\/strong><\/p>\n<p><span style=\"font-style: normal;\">Anyway, <\/span><span style=\"font-style: normal;\">the fact is (1) that the Abbasid khilafat in Baghdad made huge investments in knowledge (e.g. Bayt al Hikma), so that, <\/span><span style=\"font-style: normal;\">following the knowledge gradient, <\/span><span style=\"font-style: normal;\">numerous Arabic texts were translated <\/span><span style=\"font-style: normal;\">FROM <\/span><span style=\"font-style: normal;\">Arabic into Byzantine Greek <\/span><span style=\"font-style: normal;\">(then Constantinople was a tributary of Baghdad).<\/span><span style=\"font-style: normal;\"> The fact also is that (2) much Indian knowledge travelled to Baghdad, as <\/span><span style=\"font-style: normal;\">is well known and as repeated <\/span><span style=\"font-style: normal;\">and explained <\/span><span style=\"font-style: normal;\">during my talk (e.g. al Khwarizmi\u2019s <\/span><em>Hisab al Hind<\/em><span style=\"font-style: normal;\">). <\/span><span style=\"font-style: normal;\">As stated in the abstract, a<\/span><span style=\"font-style: normal;\"> striking example of both <\/span><span style=\"font-style: normal;\">(1) and (2) <\/span><span style=\"font-style: normal;\">is the case of the <\/span><em>Panchatantra<\/em><span style=\"font-style: normal;\"> which was translated from Sanskrit to Farsi to Arabic <\/span><span style=\"font-style: normal;\">and then <\/span><span style=\"font-style: normal;\">to Byzantine Greek to other European languages as Aesop\u2019s fables. <\/span><span style=\"font-style: normal;\">Knowledge of Indian math could similarly have got into late Arabic and Byzantine Greek texts.<\/span><\/p>\n<p><span style=\"font-style: normal;\">So, the question that arises, and was raised in <\/span><em>Cultural Foundations of Math<\/em><em>ematics,<\/em><em> <\/em><span style=\"font-style: normal;\">was this: <\/span><span style=\"font-style: normal;\"><strong>could Indian knowledge have been mis-attributed to Greeks <\/strong><\/span><span style=\"font-style: normal;\"><strong>in<\/strong><\/span><span style=\"font-style: normal;\"><strong> the process of appropriating Arabic texts to Greeks<\/strong><\/span><span style=\"font-style: normal;\">? Specifically, <\/span><span style=\"font-style: normal;\">on the strength of this appropriation, <\/span><span style=\"font-style: normal;\">people <\/span><span style=\"font-style: normal;\">like Pingree <\/span><span style=\"font-style: normal;\">and his students <\/span><span style=\"font-style: normal;\">have been clam<\/span><span style=\"font-style: normal;\">ouring <\/span><span style=\"font-style: normal;\">that trigonometry was transmitted from Greeks (\u201cPtolemy\u201d) to Indians. <\/span><span style=\"font-style: normal;\">My question <\/span><span style=\"font-style: normal;\">challenged <\/span><span style=\"font-style: normal;\">this claim <\/span><span style=\"font-style: normal;\">(and Pingree ducked the challenge in 2004 <\/span><span style=\"font-style: normal;\">when, on a trip to the US,  I directly challenged him to publicly debate the claim<\/span><span style=\"font-style: normal;\">).<\/span><\/p>\n<p>My counter-points to that claim are the following.<!--more--><br \/>\n<span style=\"font-style: normal;\"><strong><\/strong><\/span><\/p>\n<p><span style=\"font-style: normal;\"><strong>(0) <\/strong><\/span><span style=\"font-style: normal;\"><strong>Non-existence of primary Greek sources.<\/strong><\/span><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">There are no p<\/span><span style=\"font-style: normal;\">rimary sources for claims about Greek achievement in math. (This was admitted by <\/span><span style=\"font-style: normal;\">the famous historian of Greek math,<\/span><span style=\"font-style: normal;\"> David Fowler: \u201cWe possess no original versions of any Greek mathematical text, and most texts survive only in the form of Byzantine minuscule <\/span><span style=\"font-style: normal;\">from the mid-ninth century AD onwards<\/span><span style=\"font-style: normal;\">\u201d. <\/span><span style=\"font-style: normal;\">That is <\/span><span style=\"font-style: normal;\"><strong>all the primary sources for Greek math are from another land, in another language, and from another time, thousand years or more later.<\/strong><\/span><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">For the source <\/span><span style=\"font-style: normal;\">of the quote<\/span><span style=\"font-style: normal;\">, see <\/span><span style=\"font-style: normal;\">my<\/span><span style=\"font-style: normal;\"> <a href=\"http:\/\/ckraju.net\/unisa\/Lecture-3.pdf\">lecture 3<\/a> on \u201cNot out of Greece\u201d at the University of South Africa, posted online at <a href=\"http:\/\/ckraju.net\/unisa\">http:\/\/ckraju.net\/unisa<\/a>.) <\/span><\/p>\n<p><span style=\"font-style: normal;\">That is, the <\/span><span style=\"font-style: normal;\">earliest<\/span><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">available sources for Greek math <\/span><span style=\"font-style: normal;\">date to at least<\/span><span style=\"font-style: normal;\"> a century <\/span><span style=\"font-style: normal;\">AFTER<\/span><span style=\"font-style: normal;\"> the known arrival of Indian math among Arabs, <\/span><span style=\"font-style: normal;\">and <\/span><span style=\"font-style: normal;\">some are from <\/span><span style=\"font-style: normal;\">many centuries <\/span><span style=\"font-style: normal;\">later <\/span><span style=\"font-style: normal;\">as <\/span><span style=\"font-style: normal;\">in the case of \u201cPtolemy\u2019s\u201d Almagest etc. <\/span><span style=\"font-style: normal;\">As such,<\/span><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">it is easily possible that Indian math and astronomy went into Arabic <\/span><span style=\"font-style: normal;\">or Byzantine Greek <\/span><span style=\"font-style: normal;\">manuscripts, and <\/span><span style=\"font-style: normal;\">some of <\/span><span style=\"font-style: normal;\">it was later indiscriminately attributed with Crusading <\/span><span style=\"font-style: normal;\">and racist<\/span><span style=\"font-style: normal;\"> fervour by <\/span><span style=\"font-style: normal;\">credulous or dishonest Western historians<\/span><span style=\"font-style: normal;\"> to the Greeks. <\/span><\/p>\n<p><span style=\"font-style: normal;\">(1) <\/span><span style=\"font-style: normal;\"><strong>Epistemic test.<\/strong><\/span><span style=\"font-style: normal;\"> Then, of course, there is the epistemic test that <\/span><span style=\"font-style: normal;\">(leave alone early Greeks) even later-day <\/span><span style=\"font-style: normal;\">Europeans did not <\/span><em>understand<\/em><span style=\"font-style: normal;\"> trigonometry <\/span><span style=\"font-style: normal;\">properly as the very term \u201ctrigonometry\u201d shows.<\/span><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">The Jesuit general Clavius <\/span><span style=\"font-style: normal;\">did<\/span><span style=\"font-style: normal;\"> publish <\/span><span style=\"font-style: normal;\">in <\/span><span style=\"font-style: normal;\">1607 in<\/span><span style=\"font-style: normal;\"> his own name <\/span><span style=\"font-style: normal;\">trigonometric values <\/span><span style=\"font-style: normal;\">stolen from <\/span><span style=\"font-style: normal;\">India. Though these values had <\/span><span style=\"font-style: normal;\">the same<\/span><span style=\"font-style: normal;\"> ten decimal place precision, <\/span><span style=\"font-style: normal;\">as found in India, <\/span><span style=\"font-style: normal;\">neither Clavius nor any other European was then <\/span><span style=\"font-style: normal;\">able to <\/span><span style=\"font-style: normal;\">use them to <\/span><span style=\"font-style: normal;\">correctly calculate the size of the earth <\/span><span style=\"font-style: normal;\">(<a href=\"http:\/\/ckraju.net\/blog\/?p=89\">as the students of my history and philosophy of science course do<\/a>, and as explained in my <a href=\"http:\/\/ckraju.net\/geometry\/Rajju-Ganit-toc.pdf\">Class IX school text on Rajju Ganita<\/a>).<\/span><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">As explained in my talk, i<\/span><span style=\"font-style: normal;\">t was because of <\/span><span style=\"font-style: normal;\">its<\/span><span style=\"font-style: normal;\"> mathematical backwardness that <\/span><span style=\"font-style: normal;\">Europe <\/span><em>hence<\/em><span style=\"font-style: normal;\"> had a navigational problem with longitude, which persisted until (at least) the mid-18th c. <\/span><span style=\"font-style: normal;\">(The relation of earth size to longitude determination was already <a href=\"http:\/\/ckraju.net\/papers\/ckr-indology-abstract.pdf\">mentioned in my abstract<\/a> by quoting Brahmagupta\u2019<\/span><span style=\"font-style: normal;\">s<\/span><span style=\"font-style: normal;\"> statement that ignorance of earth\u2019s radius makes longitude calculations futile. The matter is discussed at length in <\/span><em>Cultural Foundations of Math<\/em><em>ematics<\/em><em>. <\/em><span style=\"font-style: normal;\"><span style=\"text-decoration: none;\"><strong>That is, the epistemic test and th<\/strong><\/span><\/span><span style=\"font-style: normal;\"><span style=\"text-decoration: none;\"><strong>e <\/strong><\/span><\/span><span style=\"font-style: normal;\"><span style=\"text-decoration: none;\"><strong>European longitude problem show the persistent European lack of understanding of trigonometry until the 17<\/strong><\/span><\/span><sup><span style=\"font-style: normal;\"><span style=\"text-decoration: none;\"><strong>th<\/strong><\/span><\/span><\/sup><span style=\"font-style: normal;\"><span style=\"text-decoration: none;\"><strong> c. <\/strong><\/span><\/span><\/p>\n<p><span style=\"font-style: normal;\">B<\/span><span style=\"font-style: normal;\">ut dishonest historians like Pingree (and his students) keep <\/span><span style=\"font-style: normal;\">insisting<\/span><span style=\"font-style: normal;\"> that trigonometry was transmitted to India from the <\/span><span style=\"font-style: normal;\">early <\/span><span style=\"font-style: normal;\">Greeks. <\/span><span style=\"font-style: normal;\">They want people to believe the quaint story that early Greeks had this knowledge which<\/span><span style=\"font-style: normal;\"> then <\/span><span style=\"font-style: normal;\">suddenly vanished <\/span><span style=\"font-style: normal;\">from Europe <\/span><span style=\"font-style: normal;\">exactly <\/span><span style=\"font-style: normal;\">like fairy godmother <\/span><span style=\"font-style: normal;\">appears and disappe<\/span><span style=\"font-style: normal;\">a<\/span><span style=\"font-style: normal;\">rs<\/span><span style=\"font-style: normal;\">! <\/span><span style=\"font-style: normal;\">This is an obvious case of anachronistic attribution of knowledge to early Greeks.<\/span><\/p>\n<p><span style=\"font-style: normal;\">In my presentation, <\/span><span style=\"font-style: normal;\">I <\/span><span style=\"font-style: normal;\">also <\/span><span style=\"font-style: normal;\">quickly <\/span><span style=\"font-style: normal;\">made several other points, <\/span><span style=\"font-style: normal;\">related to my general theory that there has been a whole lot of fraud in the Western history of science, <\/span><span style=\"font-style: normal;\">so that there is an urgent need to <\/span><span style=\"font-style: normal;\">correct and <\/span><span style=\"font-style: normal;\">decolonise the history and philosophy of science <\/span><span style=\"font-style: normal;\">(as I have been <\/span><span style=\"font-style: normal;\">trying to <\/span><span style=\"font-style: normal;\">do).<\/span><span style=\"font-style: normal;\"> <\/span><\/p>\n<p><span style=\"font-style: normal;\">(a) <\/span><span style=\"font-style: normal;\"><strong>Non-textual evidence: numerals.<\/strong><\/span><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">Because textual evidence <\/span><span style=\"font-style: normal;\">in the early Greek case<\/span><span style=\"font-style: normal;\"> is not <\/span><span style=\"font-style: normal;\">at all<\/span><span style=\"font-style: normal;\"> reliable (see below) w<\/span><span style=\"font-style: normal;\">e need to examine the non-textual evidence. Greeks and Romans <\/span><span style=\"font-style: normal;\">were backward even in arithmetic, and <\/span><span style=\"font-style: normal;\">lacked knowledge of fractions, and therefore could not have done any trigonometry. <\/span><span style=\"font-style: normal;\">The<\/span><span style=\"font-style: normal;\">re are other pointers to Greek and Roman arithmetic backwardness: e.g. <\/span><span style=\"font-style: normal;\"> the largest number they had was the myriad <\/span><span style=\"font-style: normal;\">(10000) pitifully small compared to the number of 10<\/span><sup><span style=\"font-style: normal;\">53<\/span><\/sup><span style=\"font-style: normal;\"><br \/>\n<\/span><em>named<\/em><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">as <\/span><em>tallakshana<\/em><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">by the Buddha. <\/span><span style=\"font-style: normal;\">(No name for it even today in English.) <\/span><\/p>\n<p><span style=\"font-style: normal;\">(b) <\/span><span style=\"font-style: normal;\"><strong>Non-textual evidence: calendar<\/strong><\/span><span style=\"font-style: normal;\">. <\/span><span style=\"font-style: normal;\">For what purpose did Greeks do trigonometry? <\/span><span style=\"font-style: normal;\">Indians did it for astronomy and navigation. Forget about navigation, t<\/span><span style=\"font-style: normal;\">he <\/span><span style=\"font-style: normal;\">Greek <\/span><span style=\"font-style: normal;\">ignorance<\/span><span style=\"font-style: normal;\"> of astronomy is <\/span><span style=\"font-style: normal;\">further <\/span><span style=\"font-style: normal;\">corroborated by the highly defective Greek calendar.  The Greek calends were a butt of jokes for Romans, <\/span><span style=\"font-style: normal;\">as even the OED accepts, though the Romans <\/span><span style=\"font-style: normal;\">themselves had a highly defective calendar.<\/span><\/p>\n<p><span style=\"font-style: normal;\">(<\/span><span style=\"font-style: normal;\">c<\/span><span style=\"font-style: normal;\">) <\/span><span style=\"font-style: normal;\"><strong>Social conditions.<\/strong><\/span><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">The social conditions of early Greeks (e.g. <a href=\"http:\/\/ckraju.net\/hps-aiu\/Plato-Apology-extract-2.txt\">the death-sentence on Socrates<\/a> <\/span><span style=\"font-style: normal;\">on the charge of <\/span><span style=\"font-style: normal;\">impiety <a href=\"http:\/\/ckraju.net\/hps-aiu\/extract-from-Plato-Apology.txt\">by <\/a><\/span><a href=\"http:\/\/ckraju.net\/hps-aiu\/extract-from-Plato-Apology.txt\"><span style=\"font-style: normal;\">doing astronomy<\/span><\/a><span style=\"font-style: normal;\">) demonstrates that the early Greeks were a superstitious lot, who punished astronomy with death. <\/span><span style=\"font-style: normal;\">How, <\/span><span style=\"font-style: normal;\">then,<\/span><span style=\"font-style: normal;\"> could astronomy <\/span><span style=\"font-style: normal;\">(or any science)<\/span><span style=\"font-style: normal;\"> flourish <\/span><span style=\"font-style: normal;\">among Greeks <\/span><span style=\"font-style: normal;\">under these circumstances?<\/span><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">Likewise, it is strikingly strange that a Euclid should have written a text so well suited to the <\/span><span style=\"font-style: normal;\">political<\/span><span style=\"font-style: normal;\"> requirements of the Crusading church, <\/span><span style=\"font-style: normal;\">1500 years later,<\/span><span style=\"font-style: normal;\"> that <\/span><span style=\"font-style: normal;\">the church <\/span><span style=\"font-style: normal;\"> adopted the book as a text for centuries. <\/span><span style=\"font-style: normal;\">(But Greediots are gullible people <\/span><span style=\"font-style: normal;\">with no brains<\/span><span style=\"font-style: normal;\">, <\/span><span style=\"font-style: normal;\">which is OK, except that they <\/span><span style=\"font-style: normal;\">demand <\/span><span style=\"font-style: normal;\">the same<\/span><span style=\"font-style: normal;\"> from others!)<\/span><\/p>\n<p><span style=\"font-style: normal;\">(<\/span><span style=\"font-style: normal;\">d<\/span><span style=\"font-style: normal;\">) <\/span><span style=\"font-style: normal;\"><strong>Accretion in scientific texts<\/strong><\/span><span style=\"font-style: normal;\">. <\/span><span style=\"font-style: normal;\">Later-day (Arabic or even later Byzantine Greek) sources of Greek math <\/span><span style=\"font-style: normal;\">are likely to<\/span><span style=\"font-style: normal;\"> be accretive. <\/span><span style=\"font-style: normal;\">As I teach in my <\/span><span style=\"font-style: normal;\">decolonoised <\/span><span style=\"font-style: normal;\">HPS course, <\/span><span style=\"font-style: normal;\"><strong>s<\/strong><\/span><span style=\"font-style: normal;\"><strong>cientific texts tend to be accretive <\/strong><\/span><span style=\"font-style: normal;\"><strong>since<\/strong><\/span><span style=\"font-style: normal;\"><strong> frequently updated with the latest knowledge<\/strong><\/span><span style=\"font-style: normal;\">. <\/span><span style=\"font-style: normal;\">The<\/span><span style=\"font-style: normal;\"> <\/span><em>Almagest<\/em><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">is <\/span><span style=\"font-style: normal;\">such <\/span><span style=\"font-style: normal;\">an accretive text, e.g. its star list is headed by the present-day pole star which was not even remotely <\/span><span style=\"font-style: normal;\">near <\/span><span style=\"font-style: normal;\">the pole in the <\/span><span style=\"font-style: normal;\">t<\/span><span style=\"font-style: normal;\">ime of <\/span><span style=\"font-style: normal;\">its purported Greek author Claudius <\/span><span style=\"font-style: normal;\">Ptolemy <\/span><span style=\"font-style: normal;\">(2<\/span><sup><span style=\"font-style: normal;\">nd<\/span><\/sup><span style=\"font-style: normal;\"> c. CE)<\/span><span style=\"font-style: normal;\">.<\/span><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">As such, attributing <\/span><span style=\"font-style: normal;\">authorship of, or all knowledge <\/span><span style=\"font-style: normal;\">in, these late texts to early Greeks <\/span><span style=\"font-style: normal;\">(such as Ptolemy and Archimedes) <\/span><span style=\"font-style: normal;\">is <\/span><span style=\"font-style: normal;\">grossly <\/span><span style=\"font-style: normal;\">anachronistic. <\/span><span style=\"font-style: normal;\">(But Greediots are bent on self-glorification.)<\/span><\/p>\n<p><span style=\"font-style: normal;\">(<\/span><span style=\"font-style: normal;\">e<\/span><span style=\"font-style: normal;\">) <\/span><span style=\"font-style: normal;\"><strong>Scriptural significance given to isolated passages.<\/strong><\/span><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">Since early Western historians were <\/span><span style=\"font-style: normal;\">Christian <\/span><span style=\"font-style: normal;\">priests, <\/span><span style=\"font-style: normal;\">or trained by them, <\/span><span style=\"font-style: normal;\">they assigned<\/span><span style=\"font-style: normal;\"> scriptural significance to isolated passages in these <\/span><span style=\"font-style: normal;\">late <\/span><span style=\"font-style: normal;\">texts. <\/span><span style=\"font-style: normal;\">For example,<\/span><span style=\"font-style: normal;\"> the supposed \u201cevidence\u201d for \u201cEuclid\u201d <\/span><span style=\"font-style: normal;\">is one such<\/span><span style=\"font-style: normal;\"> single passage in a text by Proclus. <\/span><span style=\"font-style: normal;\">As in scriptural analysis, <\/span><span style=\"font-style: normal;\">reliance on individual passages<\/span><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">conveniently <\/span><em>ignor<\/em><em>es<\/em><em> the context<\/em><em>;<\/em><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">it<\/span><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">invites us to overlook that <\/span><span style=\"font-style: normal;\">this passage <\/span><span style=\"font-style: normal;\">contradicts <\/span><span style=\"font-style: normal;\">the rest of Proclus\u2019 prologue which speaks of the religious significance of geometry. <\/span><span style=\"font-style: normal;\">(Theology, of course, can digest all contradictions <\/span><span style=\"font-style: normal;\">by <\/span><em>demanding<\/em><span style=\"font-style: normal;\"> faith.<\/span><span style=\"font-style: normal;\">) <\/span><\/p>\n<p><span style=\"font-style: normal;\">(f) <\/span><span style=\"font-style: normal;\"><strong>Interpolation, either innocent or deliberate.<\/strong><\/span><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">The more natural approach is to regard such misfit passages as <\/span><span style=\"font-style: normal;\">later-day <\/span><span style=\"font-style: normal;\">interpolations. <\/span><span style=\"font-style: normal;\">The late texts, <\/span><span style=\"font-style: normal;\">which are the source of Greek history of science,<\/span><span style=\"font-style: normal;\"> come to us from the hands of dishonest Christian priests who could easily have interpolated remarks or passages. <\/span><span style=\"font-style: normal;\">It <\/span><span style=\"font-style: normal;\">has always been the <\/span><span style=\"font-style: normal;\">official <\/span><span style=\"font-style: normal;\">tradition of church history (since Eusebius and Orosius) to write falsehoods <\/span><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">to glorify itself and denigrate others. <\/span><span style=\"font-style: normal;\">There are well documented cases of forgeries by <\/span><span style=\"font-style: normal;\">Christian<\/span><span style=\"font-style: normal;\"> priests, such as <\/span><span style=\"font-style: normal;\">the fake <\/span><span style=\"font-style: normal;\">\u201cTestimonium Flavium\u201d, or <\/span><span style=\"font-style: normal;\">the spurious <\/span><span style=\"font-style: normal;\">\u201cAward of Constantine\u201d <\/span><span style=\"font-style: normal;\">on which the Vatican is founded.<\/span><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">They<\/span><span style=\"font-style: normal;\"> introduced extensive forgeries even into the Bible <\/span><span style=\"font-style: normal;\">(\u201cgospel truth\u201d)<\/span><span style=\"font-style: normal;\"> as the scientist Isaac Newton pointed out in his suppressed seven-volume History of the Church, <\/span><span style=\"font-style: normal;\">suppressed to this day.<\/span><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">Of course, s<\/span><span style=\"font-style: normal;\">ome<\/span><span style=\"font-style: normal;\"> interpolations could also be non-malicious errors, as in the <\/span><span style=\"font-style: normal;\">wrong <\/span><span style=\"font-style: normal;\">claim that Euclid was from Megara in the first English translation of the <\/span><em>Elements<\/em><span style=\"font-style: normal;\"> from Byzantine Greek <\/span><span style=\"font-style: normal;\">in the 16<\/span><sup><span style=\"font-style: normal;\">th<\/span><\/sup><span style=\"font-style: normal;\"> c. <\/span><span style=\"font-style: normal;\">In short, isolated passage in late sources <\/span><span style=\"font-style: normal;\">of Greek math <\/span><span style=\"font-style: normal;\">are not reliable for they may<\/span><span style=\"font-style: normal;\"> involve <\/span><span style=\"font-style: normal;\">i<\/span><span style=\"font-style: normal;\">nterpolations, <\/span><span style=\"font-style: normal;\">whether deliberate or introduced innocently. <\/span><span style=\"font-style: normal;\"> <\/span><\/p>\n<p><span style=\"font-style: normal;\">In view of all the above arguments<\/span><span style=\"font-style: normal;\">, in my talk I repeated the point made in <\/span><em>Cultural Foundations of Math<\/em><em>ematics<\/em><span style=\"font-style: normal;\"> that the <\/span><em>Almagest<\/em><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">(of Egyptian origin) <\/span><span style=\"font-style: normal;\">a later version of which was <\/span><span style=\"font-style: normal;\">mis-<\/span><span style=\"font-style: normal;\">attributed to a non-existent early Greek called <\/span><span style=\"font-style: normal;\">Claudius <\/span><span style=\"font-style: normal;\">Ptolemy could have accrete<\/span><span style=\"font-style: normal;\">d<\/span><span style=\"font-style: normal;\"> from <\/span><span style=\"font-style: normal;\">later-day <\/span><span style=\"font-style: normal;\">Indian<\/span><span style=\"font-style: normal;\"> math and astronomy<\/span><span style=\"font-style: normal;\"> texts. In fact, I argued that <\/span><span style=\"font-style: normal;\">the version available to us<\/span><span style=\"font-style: normal;\"> did so accrete, for example because it speaks of the difficulty of multiplication exactly as <\/span><span style=\"font-style: normal;\">do<\/span><span style=\"font-style: normal;\"> Arabic zijes of the 9<\/span><sup><span style=\"font-style: normal;\">th<\/span><\/sup><span style=\"font-style: normal;\"> c. <\/span><span style=\"font-style: normal;\">And it starts with a paraphrase of a long-drawn controversy in Indian tradition over Aryabhata\u2019s statement that the earth rotates. <\/span><\/p>\n<p><span style=\"font-style: normal;\">Someone in the audience (a Greediot?) understood only the point about the lateness of sources for claims about Greek math. <\/span><span style=\"font-style: normal;\">Looks like t<\/span><span style=\"font-style: normal;\">he rest of my <\/span><span style=\"font-style: normal;\">arguments<\/span><span style=\"font-style: normal;\"> went above his head, <\/span><span style=\"font-style: normal;\">or he <\/span><span style=\"font-style: normal;\">just <\/span><span style=\"font-style: normal;\">ignored them since he had no answer to them.<\/span><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">He objected that <\/span><span style=\"font-style: normal;\">physical <\/span><span style=\"font-style: normal;\">sources for Aryabhata are similarly late. This is an objection raised even by school children <\/span><span style=\"font-style: normal;\">(while teaching <\/span><span style=\"font-style: normal;\">them <\/span><span style=\"font-style: normal;\">Rajju Ganita) <\/span><span style=\"font-style: normal;\">hence here is my response in detail.<\/span><\/p>\n<p><span style=\"font-style: normal;\">F<\/span><span style=\"font-style: normal;\">irst, I have no objection to valid inference: only to wild speculation as used in the Greek case. <\/span><span style=\"font-style: normal;\">To reiterate, one needs to separate valid inference from wild speculation.<\/span><\/p>\n<p><span style=\"font-style: normal;\">Thus<\/span><span style=\"font-style: normal;\">, the <\/span><span style=\"font-style: normal;\">physical <\/span><span style=\"font-style: normal;\">Indian sources <\/span><span style=\"font-style: normal;\">of math <\/span><span style=\"font-style: normal;\">come from the same land, and in the same language, only from a different time, unlike the Greek sources which are <\/span><span style=\"font-style: normal;\">not only <\/span><span style=\"font-style: normal;\">from a different <\/span><span style=\"font-style: normal;\">time,<\/span><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">but also from a different land, <\/span><em>and<\/em><span style=\"font-style: normal;\"> <\/span><span style=\"font-style: normal;\">in a different language. <\/span><span style=\"font-style: normal;\">Apart from wild racist assumptions, <\/span><span style=\"font-style: normal;\">by what process <\/span><span style=\"font-style: normal;\">exactly do we know what percent of the text, <\/span><span style=\"font-style: normal;\">if any,<\/span><span style=\"font-style: normal;\"> was <\/span><span style=\"font-style: normal;\">actually <\/span><span style=\"font-style: normal;\">the work of Greeks? <\/span><span style=\"font-style: normal;\">How much was of Egyptian origin, and how much due to accretion from Indian texts? Obviously, Western historians never explained. <\/span><span style=\"font-style: normal;\">They<\/span><span style=\"font-style: normal;\"> never will be able to. <\/span><\/p>\n<p><span style=\"font-style: normal;\">Second, the objections (a), (b), (c), (d) obviously do <\/span><span style=\"font-style: normal;\">NOT<\/span><span style=\"font-style: normal;\"> apply to Indian sources of math. E.g. there is evidence for sophisticated <\/span><span style=\"font-style: normal;\">arithmetic<\/span><span style=\"font-style: normal;\"> and a sophisticated calendar right from Vedic <\/span><span style=\"font-style: normal;\">and Buddhist <\/span><span style=\"font-style: normal;\">times <\/span><span style=\"font-style: normal;\">(the Buddha has a name, <\/span><em>tallakshana<\/em><span style=\"font-style: normal;\">,<\/span><span style=\"font-style: normal;\"> for 10<\/span><sup><span style=\"font-style: normal;\">53<\/span><\/sup><span style=\"font-style: normal;\">). <\/span><span style=\"font-style: normal;\">The social conditions <\/span><span style=\"font-style: normal;\">in India<\/span><span style=\"font-style: normal;\"> were against superstition, as I have repeatedly pointed out (e.g. see <\/span><a href=\"https:\/\/theprint.in\/opinion\/do-indians-have-a-scientific-temper-ancient-texts-reveal-we-did-way-before-the-west\/214767\/\"><span lang=\"en-IN\"><span style=\"font-style: normal;\">this <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">magazine <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">article on scientific temper in ancient <\/span><\/span><\/a><span style=\"font-style: normal;\"><a href=\"https:\/\/theprint.in\/opinion\/do-indians-have-a-scientific-temper-ancient-texts-reveal-we-did-way-before-the-west\/214767\/\">India<\/a>, and this extract describing <a href=\"http:\/\/ckraju.net\/papers\/Indians-against-superstition.pdf\">Indians against superstition<\/a><\/span><span style=\"font-style: normal;\">), <\/span><span style=\"font-style: normal;\">though, of course, all sorts of false <\/span><span style=\"font-style: normal;\">and derogatory <\/span><span style=\"font-style: normal;\">stories have been spread <\/span><span style=\"font-style: normal;\">about India.<\/span><span style=\"font-style: normal;\"> This <\/span><span style=\"font-style: normal;\">situation <\/span><span style=\"font-style: normal;\">is <\/span><span style=\"font-style: normal;\">contrary to Greeks where even Socrates was <\/span><span style=\"font-style: normal;\">killed for doing astronomy<\/span><span style=\"font-style: normal;\">, <\/span><span style=\"font-style: normal;\">and <\/span><span style=\"font-style: normal;\">disbelieving<\/span><span style=\"font-style: normal;\"> the divinity of the sun and the moon, a charge he denied.<\/span><span style=\"font-style: normal;\"> <\/span><span lang=\"en-US\"><span style=\"font-style: normal;\">But Greediots are stuck <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">to<\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\"> their myths<\/span><\/span><span lang=\"en-US\"><span style=\"font-style: normal;\"> and just neglect any <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">contrary textual or <\/span><\/span><span lang=\"en-US\"><span style=\"font-style: normal;\">non-textual argument, <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">and they justify this neglect by refusing to provide space for counter-views in the journals of the history of science which they control, like Pingree did.<\/span><\/span><\/p>\n<p><span lang=\"en-US\"><span style=\"font-style: normal;\">Further, <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">Indian sources are free from <\/span><\/span><span style=\"font-style: normal;\">the objection of accretion and anachronistic attribution, which applies to Greek sources. Thus, for example, the tradition in India was that commentaries reproduced the original text in full. As such, by examining Nilkantha\u2019s <\/span><span style=\"font-family: Mangal;\"><span lang=\"hi-IN\"><span style=\"font-style: normal;\">\u0906\u0930\u094d\u092f\u092d\u091f\u0940\u092f\u092d\u093e\u0937\u094d\u092f<\/span><\/span><\/span><span style=\"font-style: normal;\">we can clearly separate Aryabhata\u2019s contribution from that of Nilakantha a thousand years later. <\/span><span style=\"font-style: normal;\">No  anachronistic attribution here. <\/span><\/p>\n<p><span style=\"font-style: normal;\">Because there are so many different commentaries from different times and places, all of which <\/span><span style=\"font-style: normal;\">verbatim <\/span><span style=\"font-style: normal;\">reproduce the original <\/span><span style=\"font-style: normal;\">text on which they comment<\/span><span style=\"font-style: normal;\">, we can <\/span><span style=\"font-style: normal;\">also <\/span><span style=\"font-style: normal;\">rule out accretion. <\/span><span lang=\"en-US\"><span style=\"font-style: normal;\">But  Greediots  don\u2019t <\/span><\/span><span lang=\"en-US\"><span style=\"font-style: normal;\">seem <\/span><\/span><span lang=\"en-US\"><span style=\"font-style: normal;\">understand this argument. <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">They are bent upon <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">glorifying Greeks by <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">falsely and <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">anachronistically <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">attributing knowledge to <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">mere <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">names like Archimedes.<\/span><\/span><\/p>\n<p><span lang=\"en-US\"><span style=\"font-style: normal;\">Also, <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">i<\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">n the Indian case, <\/span><\/span><span lang=\"en-US\"><span style=\"font-style: normal;\"> there are so many commentaries <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">on Aryabhatiya <\/span><\/span><span lang=\"en-US\"><span style=\"font-style: normal;\">from so many different places <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">in India. <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">This is quite<\/span><\/span><span lang=\"en-US\"><span style=\"font-style: normal;\"> unlike the Greek case, where there is just <\/span><\/span><span lang=\"en-US\"><em>one<\/em><\/span><span lang=\"en-US\"><span style=\"font-style: normal;\"> <\/span><\/span><span lang=\"en-US\"><span style=\"font-style: normal;\">(out-of-context) <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">passage in <\/span><\/span><span lang=\"en-IN\"><em>one<\/em><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\"> <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">manuscript<\/span><\/span><span lang=\"en-US\"><span style=\"font-style: normal;\"> <\/span><\/span><span lang=\"en-US\"><span style=\"font-style: normal;\">used <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">as evidence for Euclid.<\/span><\/span><span lang=\"en-US\"><span style=\"font-style: normal;\"> <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">That is<\/span><\/span><span lang=\"en-US\"><span style=\"font-style: normal;\"> the Indian sources are (probabilistically) independent, <\/span><\/span><span lang=\"en-US\"><span style=\"font-style: normal;\">so that <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">any later-day<\/span><\/span><span lang=\"en-US\"><span style=\"font-style: normal;\"> interpolations can <\/span><\/span><span lang=\"en-US\"><span style=\"font-style: normal;\">easily be identified, and can <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">also <\/span><\/span><span lang=\"en-US\"><span style=\"font-style: normal;\">be easily excluded from a critical edition. <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">In short, <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\"><strong>anachronistic attributions, accretion, and interpolations, can be ruled out in the Indian case <\/strong><\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\"><strong>of Aryabhata<\/strong><\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\"><strong>, <\/strong><\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\"><strong>say, <\/strong><\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">but not in the case of Greek \u201csources\u201d.<\/span><\/span><\/p>\n<p><span lang=\"en-IN\"><span style=\"font-style: normal;\">Again, b<\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">ecause of the existence of <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">both <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">commentaries and objections <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">(<\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">raised <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">by opponents of Aryabhata, such as Varahamihira, and critics such as Brahmagupta)<\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\"> <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">and responses <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">to them<\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">,<\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\"> there is a <\/span><\/span><span lang=\"en-IN\"><em>continuity<\/em><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\"> in Indian sources, which is completely absent in the Greek case, where <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">all we have is a single late text. W<\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">e are asked to <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\"> rely on wild <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">(and <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">sometimes <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">demonstrably <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">dishonest<\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">) <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">speculations <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">(such as those of Heiberg) <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">based on a single late text such as the Archimedes palimpsest.<\/span><\/span><\/p>\n<p><span lang=\"en-IN\"><span style=\"font-style: normal;\">A<\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">nyway, the simple upshot is that <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">contrary to<\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\"> what has been stated by dishonest Western historians like Pingree, trigonometry (and aspects of Indian astronomical controversies) were accreted into the <\/span><\/span><span lang=\"en-IN\"><em>Almagest<\/em><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">, and the early Greeks <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">were innocent of both trigonometry and the crime of astronomy. <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">This is one of the reasons Western historians have failed to engage seriously with my book <\/span><\/span><span lang=\"en-IN\"><em>Cultural Foundations of Mathematics<\/em><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\"> on the origin of calculus and trigonometry in India. <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">They have no answer, <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">and <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">instead <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">have the cheek to ask me to engage with their later texts, <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">and not tell a different story.<\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\"> <\/span><\/span><\/p>\n<p><span lang=\"en-IN\"><span style=\"font-style: normal;\">The time has come to <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">puncture<\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\"> the bloated Western self-image, based on falsehoods. <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">By beginning to tell our own stories, w<\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">e are nearing the end of false Greek glorification since the Crusades and by racist historians <\/span><\/span><span lang=\"en-IN\"><span style=\"font-style: normal;\">who never dare take our objections into account. <\/span><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Recently, I presented my talk on \u201cPre-colonial appropriations of Indian ganita: epistemic issues\u201d. This was at a round table at IIAS Shimla which replaced the now-postponed conference on Indology. My talk was primarily about the inferior math we teach in school today based on the European misunderstanding of the Indian ganita which Europe imported. But as a sidelight, I took up a novel aspect of the Aryan race conjecture. Indologists have so far talked about the Aryan conjecture solely in the Indian context. However, I pointed out the need to link this discussion also to the Aryan race model as it applies to the African context. In particular, to the issue of the Aryan model vs Ancient model as in Martin Bernal\u2019s Black Athena, vol. 1: The fabrication of ancient Greece 1785-1985. (The date of 1785 alludes to William Jones whose philological researches started these wild speculations on race.) The fabrication of ancient Greece has a direct bearing on the history of Indian math. But first let us understand how racists did it. Racist history Bernal\u2019s key point was that after 1785 racist historians systematically rewrote history to appropriate all achievements of Black Egyptians to White Greeks. This aligned with George James\u2019 Stolen Legacy: Greek philosophy is stolen Egyptian philosophy. But instead of philosophy, Bernal applied it, for example, to architecture where the evidence of Greeks copying Egyptians is not easily contested: the so-called Greek architecture of columns is manifestly copied from Egypt and Iran (Persepolis). Bernal made only scattered remarks on math and science, perhaps out of deference to his father J. D. Bernal, who wrote his famous (but now hopelessly dated) volumes on the history of science. However, after going through my PHISPC volume Cultural Foundations of Mathematics, Bernal (Jr) strongly encouraged me to look at the related issues of concern to the history of math where undue credit has been given to Greeks (as explained in an earlier blog \u201cGreediots and Pythagoras\u201d, which also provides the relevant background to this post). One point in my above book relates closely to Afrocentrist concerns about undue credit to Greeks in the history of math. Thus, my point (later summarised e.g. in Is Science Western in Origin?) was that the church falsified history even before racist historians. This process of falsifying history went virulent during the Crusades against Muslims. (Bernal agreed with me here.) The Toledo mass translations of Arabic texts into Latin, beginning 1125, involved learning from the books of the religious enemy. The church, which had earlier consistently burnt heretical books, needed to justify learning from the books of the religious enemy. It provided this justification through the coarse falsehood that all scientific knowledge in Arabic books came from the sole \u201cfriends of Christians\u201d, the early Greeks. As such, it claimed that knowledge in Arabic books as a Christian inheritance: and that Arabs contributed nothing to it. Later racist historians modified the church thesis by insisting that the authors of Greek books, even in Africa, were white-skinned, hence claimed it as part of White achievements. The racist historian Florian Cajori is an example of how religious chauvinism was absorbed into racist chauvinism. No evidence exists, and none was needed! Egyptian and Persian texts were translated into Greek, by Alexander and the Ptolemy dynasty, but any material coming from these texts was all attributed by racist historians to Greeks. Western historians against Afrocentrism, such as Lefkowitz, falsely state that there is no evidence for such translation. As I pointed out in my UNISA lectures, Zoroastrians have been complaining about the burning and Greek translation of their texts for over 2000 years. Western historians rightly assume that their parochial readers would be unfamiliar with those texts. Obviously, also, for the Greediotic brain it is equally easy to imagine (when required) that skin color relates to the language of the text: thus, any Indian author writing in English, such as this one, must be white-skinned! There are no early original Greek sources available, but even if they were a claim of any Greek originality (e.g. on Sphere and Cylinder, attributed to Archimedes), would need proof, since this is also found in the Ahmes papyrus from a thousand years earlier, as pointed out by Diop. Lefkowitz has only some utterly foolish comments to offer claiming that Archimedes compared the area of a cylinder to the volume of a sphere. That is the typical standard of racist historians. Relevance to Indology Anyway, the fact is (1) that the Abbasid khilafat in Baghdad made huge investments in knowledge (e.g. Bayt al Hikma), so that, following the knowledge gradient, numerous Arabic texts were translated FROM Arabic into Byzantine Greek (then Constantinople was a tributary of Baghdad). The fact also is that (2) much Indian knowledge travelled to Baghdad, as is well known and as repeated and explained during my talk (e.g. al Khwarizmi\u2019s Hisab al Hind). As stated in the abstract, a striking example of both (1) and (2) is the case of the Panchatantra which was translated from Sanskrit to Farsi to Arabic and then to Byzantine Greek to other European languages as Aesop\u2019s fables. Knowledge of Indian math could similarly have got into late Arabic and Byzantine Greek texts. So, the question that arises, and was raised in Cultural Foundations of Mathematics, was this: could Indian knowledge have been mis-attributed to Greeks in the process of appropriating Arabic texts to Greeks? Specifically, on the strength of this appropriation, people like Pingree and his students have been clamouring that trigonometry was transmitted from Greeks (\u201cPtolemy\u201d) to Indians. My question challenged this claim (and Pingree ducked the challenge in 2004 when, on a trip to the US, I directly challenged him to publicly debate the claim). My counter-points to that claim are the following.<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2,3,5],"tags":[],"class_list":["post-190","post","type-post","status-publish","format-standard","hentry","category-education","category-history-and-philosophy-of-mathematics","category-history-of-astronomy"],"_links":{"self":[{"href":"https:\/\/ckraju.net\/wordpress_F\/index.php?rest_route=\/wp\/v2\/posts\/190","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ckraju.net\/wordpress_F\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ckraju.net\/wordpress_F\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ckraju.net\/wordpress_F\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ckraju.net\/wordpress_F\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=190"}],"version-history":[{"count":0,"href":"https:\/\/ckraju.net\/wordpress_F\/index.php?rest_route=\/wp\/v2\/posts\/190\/revisions"}],"wp:attachment":[{"href":"https:\/\/ckraju.net\/wordpress_F\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=190"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ckraju.net\/wordpress_F\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=190"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ckraju.net\/wordpress_F\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=190"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}