Ptolemy Summary

Ptolemy (Claudius Ptolemaeus) 100?-170? Greek mathematician, astronomer, and geographer whose major work, the Almagest, is a large mathematical text that describes the movement of the heavens. A Roman... Read more

Ptolemy (Ca. 100-170) Greek astronomer Very little is known about Ptolemy's early life. Born in Alexandria, Egypt, as Ptolemais Hermii, his name was later latinized as Claudius Ptolemaeus, and ... Read more

Very little is known about Ptolemy's early life. Born in Alexandria, Egypt, as Ptolemais Hermii, his name was later latinized as Claudius Ptolemaeus, and later Ptolemy.Ptolemy's chief contribution to ... Read more

Claudius Ptolemy was a famed Greek scholar whose work in astronomyand geometryhelped form the basis of trigonometry.Ptolemy's earliest and most famous work was the Almagest, which focused on astronomy... Read more