426 BC

Centuries: 6th century BC – 5th century BC – 4th century BC

Decades: 470s BC 460s BC 450s BC 440s BC 430s BC – 420s BC – 410s BC 400s BC 390s BC 380s BC 370s BC

Years: 431 BC 430 BC 429 BC 428 BC 427 BC – 426 BC – 425 BC 424 BC 423 BC 422 BC 421 BC

Events

• Battle of Tanagra – Athenians under Nicias are defeated in an invasion of Boeotia
• Battle of Olpae – Athenians under Demosthenes defeat the Spartans in Aetolia
• Major earthquake in Athens

Births

Deaths

• Herodotus of Halicarnassos
• Zhou kao wang, King of the Zhou Dynasty of China