Pythagoras of Samos was a famous Greekmathematician and philosopher, born between 580 and 572 BC, and died between 500 and 490 BC. He is known best for the Pythagorean theorem, which is an important theorem about right triangles. He started a group of mathematicians, called the Pythagoreans, who worshiped numbers and lived like monks. He was an influence for Plato.
He had a great impact on mathematics, theory of music and astronomy. His theories are still used in mathematics today. He was one of the greatest thinkers of his time.