(Keynote Tübingen/Pretoria 13 May 2021. Related articles now online.) Video: https://www.youtube.com/watch?v=kAP1BcK8mLE Presentation: http://ckraju.net/papers/presentations/Euclid-must-fall.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…