Centuries: 6th century BC -

**5th century BC**- 4th century BC

Decades: 480s BC 470s BC 460s BC 450s BC 440s BC - **430s BC** - 420s BC 410s BC 400s BC 390s BC 380s BC

439 BC 438 BC 437 BC 436 BC 435 BC 434 BC 433 BC 432 BC 431 BC 430 BC

**Events and Trends**

- The Peloponnesian War begins between Sparta and Athens and their allies.