420s BC

This article concerns the period 429 BC – 420 BC.

Births

429 BC

• Ateas, king of Scythia (d. 339 BC)

428 BC

• Archytas, Greek philosopher, mathematician, astronomer, statesman, and strategist (d. 347 BC)

427 BC

• Plato, Greek philosopher (d. c. 347 BC)

425 BC

• Artaxerxes III, king of the Persian Empire (approximate date)

Deaths

429 BC

• Pericles, Athenian statesman (epidemic) (born c. 495 BC)

428 BC

• Anaxagoras, Greek philosopher (b. c. 500 BC)

427 BC

• Archidamus II, king of Sparta

426 BC

• Eurylochus, Spartan general (killed in battle)
• Zhou kao wang, king of the Zhou dynasty of China

425 BC

• Artaxerxes I, king of the Persian Empire
• Herodotus of Halicarnassos, Dorian Greek historian (b. 484 BC)

424 BC

• The Achaemenid king Artaxerxes I and his wife Damaspia
• Xerxes II, King of Persia.

423 BC

• Sogdianus, King of Persia (assassinated)

422 BC

• Brasidas, Spartan general
• Cleon, Athenian politician and general

421 BC

• Cratinus, Greek comedy author (approximate date) (b. 520 BC)

420 BC

• Protagoras, Greek presocratic philosopher (b. c. 490 BC)