When did the people start using the portraits of the two Euclids interchangeably?

Nov 2014 ⋅

⋅ ⋅ #depiction-of-scientists #debunking

Question related to the legitimacy of a certain portrait of Christian Goldbach

Nov 2014 ⋅

⋅ ⋅ #depiction-of-scientists #debunking

On Einstein's proof of the so-called Pythagorean theorem

Dec 2015 ⋅

⋅ ⋅ #pythagorean-proposition #euclidean-geometry #mathematics #debunking