 400 BC - Events: Encyclopedia - 400 BCCenturies: 5th century BC - 4th century BC - 3rd century BC
Decades: 450s BC 440s BC 430s BC 420s BC 410s BC - 400s BC - 390s BC 380s BC 370s BC 360s BC 350s BC
Years: 405 BC 404 BC 403 BC 402 BC 401 BC - 400 BC - 399 BC 398 BC 397 BC 396 BC 395 BC
400 BC - Events.
Carthaginians occupy Malta.
The catapult is invented by Greek engineers.
400 BC - Births.
Kidinnu, Chaldean astronomer (approximate year)
400 BC - ...
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