Pythagoras: A Detailed Biography

Pythagoras of Samos (c. 570–495 BCE) was the ancient Greek philosopher, mathematician, and mystic whose teachings founded Pythagoreanism — a religious and philosophical movement blending mathematics, music, and ethics. Credited with the Pythagorean theorem, discovery of musical harmony ratios, and doctrine of transmigration of souls, he influenced Plato, Euclid, and Western thought profoundly. No writings survive; knowledge comes from later followers. This biography covers his Samos birth, travels, Croton community, mathematical discoveries, and legendary death, as documented by the Encyclopaedia Britannica, the Stanford Encyclopedia of Philosophy, and the MacTutor History of Mathematics.

Early Life on Samos

Birth and Travels

Born around 570 BCE on Samos to gem-engraver Mnesarchus and Pythais. Legend says Apollo fathered him. Travelled widely — Egypt (learned geometry from priests), Babylon (astronomy and numerology), possibly India, as detailed by the Livius.org and the History Today.

Founding the Pythagorean Brotherhood in Croton

Around 530 BCE Pythagoras settled in Croton, southern Italy, founding a secretive religious-philosophical community. Followers lived communally, followed strict rules (vegetarianism, silence, no beans), and divided into inner (mathematikoi) and outer circles, as documented by the British Library and the Metropolitan Museum of Art.

Mathematical and Musical Discoveries

Harmony and Numbers

Pythagoras discovered musical intervals correspond to simple ratios (octave 2:1, fifth 3:2). He taught “all is number” — numbers have mystical properties, the universe is mathematical harmony, as preserved by the Story of Mathematics and the National Geographic.

Pythagorean Theorem

The theorem (a² + b² = c²) was known earlier, but Pythagoras or his school likely provided the first general proof. It became foundational to geometry, as documented by the BBC and the Smithsonian Magazine.

Religious and Ethical Teachings

Pythagoras taught metempsychosis (soul reincarnation), vegetarianism (souls in animals), and daily self-examination. Women were admitted — including philosopher Theano, possibly his wife, as detailed by the The Collector.

Political Influence and Downfall

Pythagoreans gained power in Croton but were attacked by democratic factions. Communities in other cities were destroyed; Pythagoras fled to Metapontum, as documented by the Ancient History Encyclopedia.

Personal Life

Pythagoras married Theano (or she was a disciple). Had children including daughter Damo, entrusted with secret teachings. Known for golden thigh (legend) and miraculous abilities.

Death and Legacy

Pythagoras’s Enduring Impact

Pythagoras died around 495 BCE in Metapontum — legends: starved in sanctuary, killed fleeing across bean field, or simply old age. No contemporary writings survive; knowledge from Aristotle, Plato, and later Neopythagoreans. His school influenced Plato’s Academy and Euclid. Pythagorean theorem and numerology remain fundamental. Modern “Pythagorean” diet and mathematics honour him, as celebrated by the National Geographic.

Frequently Asked Questions About Pythagoras

Why Is Pythagoras Famous?

For Pythagorean theorem, musical harmony, and founding religious-mathematical brotherhood.

Did Pythagoras Discover the Theorem?

Known earlier, but he or his school provided first general proof.

Where Was Pythagoras Born?

Samos, Greece, c. 570 BCE.

What Is Transmigration of Souls?

Soul reincarnates until purified — basis of vegetarianism.

Did Pythagoras Ban Beans?

Yes — reasons lost (health, symbolism, or soul taboo).

Was Pythagoras Vegetarian?

Yes — due to soul transmigration.

How Did Pythagoras Die?

Around 495 BCE — legends vary.