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Events. Significant people. Births. Deaths. References. 400s (decade) The 400s decade ran from January 1, 400, to December 31, 409. Events. 400. This section is transcluded from AD 400. ( edit | history) By place [ edit] Roman Empire [ edit] January 9 – Emperor Arcadius gives his wife Aelia Eudoxia the official title of Augusta.
Events. 400s. The 400s was a decade that started on 1 January 400 and ended on 31 December 409. 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 Athenian fleet under Admiral Conon is destroyed by the Spartans under Lysander in the Battle of Aegospotami in the Sea of Marmara and Conon flees to Cyprus. The Spartan king Pausanias lays siege to Athens while Lysander's fleet blockades Piraeus.
400s may refer to: The period from 400 to 499, almost synonymous with the 5th century (401–500) The period from 400 to 409, known as the 400s decade, almost synonymous with the 41st decade (401-410) Category: Letter–number combination disambiguation pages.
The category is for articles and events specifically related to the decade of the 400s which begins in the year 400 and ends in the year 409. Note that 400 is actually the last year of the 4th century ; 401 is the actual first year of the 5th century .
Organizations, places or other things founded or established in the decade 400s.
Jun 25, 2020 · Jump to navigation Jump to search. · 490s · 480s · 470s · 460s · 450s · 440s · 430s · 420s · 410s · 400s · ( 5th century BCE) Subcategories. This category has the following 19 subcategories, out of 19 total. 400 BC (3 C, 3 F) 401 BC (2 F) 402 BC (1 C) 403 BC (3 C) 404 BC (1 C, 1 F) 405 BC (2 C) 406 BC (2 C) 407 BC (1 C)
