Euclid
Euclid of Alexandria was a mathematician who lived during 365 and 360 BC, not to be confused with Euclides of Megara, who was a philosopher that worked with Socrates. His most famous work is named The Elements, a collection of thirteen books that all deal with theorems of geometry. Some examples of his theorems are one where he proposes that there are infinitely many prime numbers, and another in which he asserts that if all the interior angles of a triangle equal 60 degrees, then the triangle must be equilateral. This work was considered to be one of the leading mathematical texts up until the mid-1900’s, because it was the first definitive text for ways of reasoning and forming geometric theorems. The Elements is sometimes compared to the Bible in its widespread use.
MacTutor History of Mathematics Archive. www-groups.dcs.st-and.ac.uk/~history/
Biographies/Euclid.html. Accessed 31 Mar. 2017.
MacTutor History of Mathematics Archive. www-groups.dcs.st-and.ac.uk/~history/
Biographies/Euclid.html. Accessed 31 Mar. 2017.