Great! Now that Ted knows about Geometry, he is curious about how it all started. Since Ted wants to become a great mathematician one day, he is also interested in knowing about the great mathematicians. We are talking about Geometry here. Which mathematician is regarded as the father of Geometry?
Euclid was a Greek mathematician and is called 'father of Geometry'. He compiled Elements which have several geometric theories. These are still used by mathematicians all around the world.