Euclid is often referred to as the "Father of Geometry." It is probable that he attended Plato's Academy in Athens, received his mathematical training from students of Plato, and then came to Alexandria. Alexandria was then the largest city in the western world, and the center of both the papyrus industry and the book trade. Ptolemy had created the great library at Alexandria, which was known as the Museum, because it was considered a house of the muses for the arts and sciences. Many scholars worked and taught there, and that is where Euclid wrote The Elements. There is some evidence that Euclid also founded a school and taught pupils while he was in Alexandria.