3rd century BC, 3rd century BC - Decades and years, 3rd century BC - Events, 3rd century BC - Inventions, discoveries, introductions, 3rd century BC - Significant persons
(2nd millennium BC - 1st millennium BC - 1st millennium)
3rd century BC - Events.
The first two Punic Wars between Carthage and Rome over dominance in western Mediterranean
Rome conquers Spain
Gaulish migration to Macedon, Thrace and Galatia
281 BC Antiochus I Soter, on the assassination of his father Seleucus becomes emperor of the Seleucid empire.
273 BC to 252 BC Ashoka the Great ruled the Mauryan Empire
261 BC Antiochus II Theos, 2nd son, at the death o ...