Eudoxus's life was lived from 408-355 BC, and he's from Ancient Greece. He journeyed wide and far for is studies of mathmatics despite lacking inhereted wealth. He traveled to Tarentum, Sicily, Athens, Egypt, and far along the Eastern Mediterranean. He studied with some of the greats lke Euclid, learnig and developing techniques from their teachings. All knowledge known abor Eudoxus is second hand from the mathmaticians he toured with. Eudoxus proved many of the theroms explained in Euclid's Elements. He also developed the earliest techniques of the infinitesimal calculus; Archimedes gives Eudoxus credit for inventing a principle eventually called the Axiom of Archimedes:it avoids Zeno's paradoxes by, in effect, forbidding infinities and infinitesimals.