https://commons.wikimedia.org/wiki/File:Clay_tablet,_mathematical,_geometric-algebraic,_similar_to_the_Pythagorean_theorem._From_Tell_al-Dhabba%27i,_Iraq._2003-1595_BCE._Iraq_Museum.jpg
Autor: Osama Shukir Muhammed Amin FRCP(Glasg)
Licencia: Creative Commons Attribution-Share Alike 4.0 International