: 5th century BC
- 4th century BC
- 3rd century BC
Decades: 440s BC 430s BC 420s BC 410s BC 400s BC - 390s BC - 380s BC 370s BC 360s BC 350s BC 340s BC
395 BC 394 BC 393 BC 392 BC 391 BC - 390 BC - 389 BC 388 BC 387 BC 386 BC 385 BC
- Spartan mora (regiment) defeated by Athenians (led by Iphicrates) at Lechaeum
- Battle of the Allia: Gauls, under Brennus, defeat the Roman army. This leads to the capture and sack of Rome.