Decades: 390s BC 380s BC 370s BC 360s BC 350s BC - **340s BC** - 330s BC 320s BC 310s BC 300s BC 290s BC

Years: 345 BC 344 BC 343 BC 342 BC 341 BC - **340 BC** - 339 BC 338 BC 337 BC 336 BC 335 BC

- Battle of the Crimissus: Timoleon defeats the Carthaginian invaders of Sicily
- Rhodes falls to Persian forces