Answer:
He is known as "The Father of Geometry". He founded a school over 2,000 years ago in Alexandria, Egypt. He also created a book called "The Elements" which is made up of 13 Volumes. There is NO known record of Euclid's parents, siblings, marriage, or childhood. Some people also say he was one of the three greatest mathemititions of antiquity.
For more extra information type Euclid in wikipedia. you will get an introduction, life and his works.