Centuries: 4th century BC - 3rd century BC - 2nd century BC
Decades: 300s BC 290s BC 280s BC 270s BC 260s BC - 250s BC - 240s BC 230s BC 220s BC 210s BC 200s BC
Years: 256 BC 255 BC 254 BC 253 BC 252 BC - 251 BC - 250 BC 249 BC 248 BC 247 BC 246 BC
Events
- Alexander of Sicyon freed his city from Spartan control, then united it to the Achaean League.
- First Punic War: Battle of Panormus - Carthaginian forces under Hasdrubal are defeated by the Romans under L. Caecilius Metellus.