Centuries: 7th century BC - 6th century BC - 5th century BC
Events and Trends
- 525 BC -- Egypt: End of Twenty-sixth Dynasty, start of Twenty-seventh Dynasty
- 521 BC -- Darius I succeeded Gaumata as ruler of Persia
- 520 BC -- Zhou dao wang becomes King of the Zhou Dynasty of China but dies before the end of the year.
- 520 BC -- Cleomenes I succeeds Anaxandridas as king of Sparta. (approximate date)
- 528 BC -- Death of Cyrus the Great, ruler of ancient Persia
- 527 BC -- Death of Peistratus, Athenian general
- 525 BC -- Birth of Aeschylus, author of Greek tragedies
- 525 BC - Death of Anaximenes of Miletus, Greek philosopher (born 585 BC).
- 521 BC, March -- Death of Cambyses II, ruler of ancient Persia (suicide)
- 521 BC, October -- Death of Gaumata, ruler of ancient Persia
- 521 BC -- Death of Zhou jing wang, King of the Zhou Dynasty of China.
- 520 BC -- Death of Zhou dao wang, King of the Zhou Dynasty of China