Why Is Euclid Famous?

Why Is Euclid Famous? Euclid, Greek Eukleides, (flourished c. 300 bce, Alexandria, Egypt), the most prominent mathematician of Greco-Roman antiquity, best known for his treatise on geometry, the Elements. Why is Euclid so famous? He is most famous for his works in geometry, inventing many of the ways we conceive of space, time, and shapes.