Michel Chasles
was born 224 years ago
15th November 1793

Michel Chasles worked on algebraic and projective geometry. He wrote Aperçu historique sur l'origine et le développement des méthodes en géométrie (1837) which is still an important historical reference.

Find out more at:
http://www-history.mcs.st-andrews.ac.uk/Mathematicians/Chasles.html