Millennia:	1st millennium BC
Centuries:	6th century BC - 5th century BC - 4th century BC
Decades:	450s BC 440s BC 430s BC - 420s BC - 410s BC 400s BC 390s BC
Years:	429 BC 428 BC 427 BC 426 BC 425 BC 424 BC 423 BC 422 BC 421 BC 420 BC
Categories:	Births - Deaths - State leaders - Sovereign states Establishments - Disestablishments

Events and trends

• Peloponnesian War
• 429 BC — Battle of Chalcis — Chalcidians and their allies defeat Athens.
• 429 BC — Battle of Naupactus — Phormio defeats the Peloponnesian fleet.
• 429 BC — An outbreak of plague kills over one-third of the population of Athens.

Deaths

• 429 BC — Pericles, Athenian statesman (epidemic)

Significant people

• Herodotus, Greek historian (b. c. 485 BC, he may have died somewhere between 430 and 425 BC).