580 B.C. – Born in Samos, Ionia, Greece. Pythagoras of Samos is often described as the first pure mathematician. He was a mystic, philosopher, and scientist.
– He developed doctrine of metempsychosis.
535 B.C. – Pythagoras went to Egypt.
– Pythagoras was refused admission to all the temples except the one at Diospolis where he was accepted into the priesthood after completing the rites necessary for admission.
525 B.C. – Cambyses II, the king of Persia, invaded Egypt. Pythagoras was taken prisoner and taken to Babylon.
520 B.C. – Pythagoras left Babylon and returned to Samos.
518 B.C. – Pythagoras left Samos and went to southern Italy.
– Pythagoras founded a philosophical and religious school in Croton (now Crotone, on the east of the heel of southern Italy) that had many followers. Pythagoras was the head of the society with an inner circle of followers known as mathematikoi.
513 B.C. – Pythagoras went to Delos to nurse his old teacher Pherekydes who was dying. He remained there for a few months until the death of his friend and teacher and then returned to Croton.
510 B.C. – Croton attacked and defeated its neighbour Sybaris and there is certainly some suggestions that Pythagoras became involved in the dispute.
508 B.C. – The Pythagorean Society at Croton was attacked by Cylon, a noble from Croton itself. Pythagoras escaped to Metapontium and the most authors say he died there, some claiming that he committed suicide because of the attack on his Society.
500 B.C. – Died in Metapontum, Lucania, Greece.
– The evidence is unclear as to when and where the death of Pythagoras occurred. Certainly the Pythagorean Society expanded rapidly, became political in nature and also spilt into a number of factions.