Decades: 500s BC 490s BC 480s BC 470s BC 460s BC - **450s BC** - 440s BC 430s BC 420s BC 410s BC 400s BC

Years: 459 BC 458 BC 457 BC 456 BC 455 BC - **454 BC** - 453 BC 452 BC 451 BC 450 BC 449 BC

- Athens loses a fleet and possibly as many as 50 000 men in a failed attempt to aid an Egyptian revolt against Persia.
- The treasury of the Delian League is moved from Delos to Athens
- Hostilities between Segesta and Selinunte, two Greek cities on Sicily