The term “Pythagorean theorem” is #racist, based on a lie that (White) Greeks did a superior axiomatic math unknown in (Black) Egypt. Did they? Was “Euclid” a White Greek male as imagined by Wikipedia or a Black Egyptian woman as in the cover of this book? Does racism affect math?…


Calculus is difficult because real numbers are wrongly believed essential to it. Reverting to the way calculus originated makes it easy. Axiomatic proofs (like Russell’s 378 page proof of 1+1=2) add zilch to the practical value of math in a grocer’s shop, but they make math excessively difficult. The purported…

Because the calculus is difficult. Why? Because Europeans stole it, and hence, like cheats in an exam, they failed to fully understand it. Snippet of handwritten letter from Matteo Ricci (Cochin, 1581) just before Clavius’ 1582 Gregorian reform of the calendar, which itself was needed for European navigation (latitude determination…

(Note: The following article speaks the truth, instead of taking sides. However, the Indian media being totally polarised, I could not publish the article in either English or Hindi. Hence, am now posting it on my blog, since I feel it is important for me to take a stand on…

(Keynote Tübingen/Pretoria 13 May 2021. Related articles now online.) Video: https://www.youtube.com/watch?v=kAP1BcK8mLE Presentation: http://ckraju.net/papers/presentations/Euclidmustfall.html Articles: Part 1: Racist prejudice and the false history of “Greek” achievements in math and science Abstract.To eliminate racist prejudices, it is necessary to identify the root cause(s) of racism. American slavery preceded racism, and was closely…

All the lies and obscurities of “Euclidean” geometry, as taught in the NCERT class VI, IX, and X school texts, stand exposed in these presentations and videos of the workshop held on 5 and 6 June 2021. Presentations: Day 1, Day 2 (space bar moves to the next slide) Videos:…

UDHBHAVAHA brings you SHOULD OUR SCHOOL CHILDREN LEARN “EUCLIDEAN” GEOMETRY OR RAJJU GANITA? By Prof. C.K RAJU A 2day workshop to discuss: (1) The falsehoods and obscurities in “Euclidean” geometry, as currently taught (2) Why Indian śulba (string) geometry is a better way to teach geometry. DATE: 5th and 6th…

The keynote is on the origin of the excessively foolish, but persistent, belief in racist superiority, AND its cure. Here are the details of the International Colloquium and an extended abstract. The times in the program are German times. How does this concern Indians? Because the colonial myth of civilizational…

This is a video recording my concluding seminar (25 March 2021) as a Tagore Fellow at the Indian Institute of Advanced Study. Twitter summary: 1. Ganita (गणित) differs from (formal) math, 2. it makes math easy, and 3. makes science better. 4. This is an obituary of formal math. Slogan…

(In response to a post asking about the possible cure for racism, by Ron Eglash on the Isgem mailing list (International study group on ethnomathematics) Well Ron, Let us ask what we and Isgem, in particular, can do about it. The false sense of racist superiority was created and is…