Born: ~569 in Samos Ionia
Pythagoras proved the Pythagorean Theorem to be true for all cases, and
it was therefore named after him, but it was not originally discovered by him.
Pythagoras was also fascinated with Numerology, he believed all of life began and ended with numbers. Numbers were the key to life and death.
Pythagoras traveled to Egypt and Babylon in the pursuit of knowledge.
In Egypt and Babylon he learned about right triangles and numerology.
The knowledge of Right Triangles and Numerology was originally known to the Sumerians, the knowledge was then passed on to the Babylonians. The Babylonians passed it on to the Egyptians.
Pythagoras formed a "Think Tank", which included his fellow thinkers and students. As members of this Think Tank, they studied Mathematics, Geometry and Numerology.
"All Things Are Numbers", ...Pythagoras, 5th Century B.C.
Pythagoras died around ~475 B.C.