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A half-legendary thinker from ancient Greece, he stands at the crossroads of mathematics, philosophy, music, and religious thought. His name is forever linked with the famous theorem, but his wider influence on Western ideas was even broader.

by Antoine Fabre d'Olivet, Pythagoras
Pythagoras was an ancient Greek philosopher and teacher, traditionally said to have been born on the island of Samos around the 6th century BCE. He later settled in southern Italy, where he founded a community whose members studied mathematics, music, ethics, and the structure of the cosmos.
Although many stories about his life were written long after he died, he is widely remembered as the figure behind Pythagoreanism, a way of thought that treated number and harmony as keys to understanding the world. Ancient writers and modern reference works both connect his school with ideas that shaped later Greek philosophy, especially through its influence on Plato.
He is most famous today because of the Pythagorean theorem, but his historical legacy is larger than any single formula. Pythagoras became a symbol of the belief that mathematics is not just useful, but deeply connected to beauty, order, and the way people live.