440 BC
Centuries: 6th century BC - 5th century BC - 4th century BCDecades: 490s BC 480s BC 470s BC 460s BC 450s BC - 440s BC - 430s BC 420s BC 410s BC 400s BC 390s BC
Years: 445 BC 444 BC 443 BC 442 BC 441 BC - 440 BC - 439 BC 438 BC 437 BC 436 BC 436 BC
Events:
- Meron determines the two points of the solstice
- Democritus poses the existence of indivisible particles which he calls atoms
- Zhou kao wang becomes King of the Zhou Dynasty of China
Deaths:
