331 BC
de:331 v. Chr. es:331 adC fr:-331 hr:331 p.n.e. ja:紀元前331年 lb:-331 pl:331 p.n.e. uk:331 до Р.Х. Centuries: 5th century BC - 4th century BC - 3rd century BC Decades: 380s BC 370s BC 360s BC 350s BC 340s BC - 330s BC - 320s BC 310s BC 300s BC 290s BC 280s BC Years: 336 BC 335 BC 334 BC 333 BC 332 BC - 331 BC - 330 BC 329 BC 328 BC 327 BC 326 BC ---- Events
- October 1 - Battle of Gaugamela: Alexander the Great defeats Darius III in Mesopotamia and conquers Persia
- Battle of Pandosia, Alexander of Epirus, the uncle of Alexander the Great, is defeated and killed in Italy by the Samnites.
- Battle of Megalopolis, Antipater, Alexander's regent in Macedon and Greece, defeats the Spartans under King Agis III