Year 400 before Christ
previous
Days count
365
First day
Last day
Year -399 started on Monday, January 1 and ended after 365 days on Monday, December 31.
Important events
4th-century BC Greek Cynic philosopher
date of birth
date of death
Year 323 before Christ
77 years
Ancient Macedonian general
date of birth
date of death
Year 329 before Christ
71 years
Ancient Greek mathematician
date of birth
date of death
Year 350 before Christ
50 years
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