However little is known of Euclid's life except that he taught at Alexandria in Egypt.(ii) Euclid was the leader of a team of mathematicians working at Alexandria.The second type of information is that Euclid was born at Megara.It is not quite the coincidence that it might seem that there were two learned men called Euclid.For further discussion on dating Euclid, see for example.This is far from an end to the arguments about Euclid the mathematician.(i) Euclid was an historical character who wrote the Elements and the other works attributed to him.(iii) Euclid was not an historical character.Euclid's most famous work is his treatise on mathematics The Elements.Euclid's decision to make this a postulate led to Euclidean geometry.