Decades: 370s BC 360s BC 350s BC 340s BC 330s BC - **320s BC** - 310s BC 300s BC 290s BC 280s BC 270s BC

329 BC 328 BC 327 BC 326 BC 325 BC - **324 BC** - 323 BC 322 BC 321 BC 320 BC 319 BC

- Antiochus I Soter, later King of the Seleucid dynasty.

- October: Hephaestion, companion of Alexander the Great

- February: Alexander the Great visits Susa and marries Statira, daughter of Darius III of Persia.