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.