This guide will assist in finding resources on the social, religious, intellectual, scientific, artistic, economic, and political aspects of various cultures from ancient times to the early modern era.
C.582–c.507 B.C., pre-Socratic Greek philosopher, founder of the Pythagorean school, best known for two teachings: the transmigration of souls and the theory that numbers constitute the true nature of things.
Greek mathematician (fl. 300 B.C.) whose works, and the style in which they were presented, formed the basis for all mathematical thought and expression for the following 2,000 years (although they were not entirely without fault).