400s

decade

The 400s was a decade that started on 1 January 400 and ended on 31 December 409.

Millennium:1st millennium
Centuries:4th century5th century6th century
Decades:370s 380s 390s400s410s 420s 430s
Years:400 401 402 403 404 405 406 407 408 409
Categories:BirthsDeaths – Architecture
Establishments – Disestablishments

Events

  • Constantine III seizes control of the Roman garrison in Britain, declares himself emperor, and crosses into Gaul.
  • August 22, 408 – Stilicho, military power behind the imperial throne, is executed. The Roman military is leaderless for several years until Constantius III becomes patrician.
  • Construction (and therefore occupation) at Great Zimbabwe begins.
  • Validity limit for the information on Eastern Roman Empire in the Notitia Dignitatum.