PastlasHistorical atlas

Decade · 400 – 409

The world in the 400s

From 400 to 409 the atlas holds 131 states standing at some time. 15 things began - Hephthalites, Kingdom of Gwynedd and Kingdom of the Suebi among them - and 9 ended; 15 people were born and 14 died, 1 of all these dated only to the decade.

Its years

The years of the decade with a page of their own: ten or more things dated to the year.

400: 3 began — 0 wars and battles, 0 risings, regime changes and massacres, 3 other400401: 2 began — 1 wars and battles, 0 risings, regime changes and massacres, 1 other401402: 2 began — 2 wars and battles, 0 risings, regime changes and massacres, 0 other402403: 0 began — 0 wars and battles, 0 risings, regime changes and massacres, 0 other403404: 0 began — 0 wars and battles, 0 risings, regime changes and massacres, 0 other404405: 1 began — 1 wars and battles, 0 risings, regime changes and massacres, 0 other405406: 2 began — 2 wars and battles, 0 risings, regime changes and massacres, 0 other406407: 3 began — 1 wars and battles, 0 risings, regime changes and massacres, 2 other407408: 1 began — 0 wars and battles, 0 risings, regime changes and massacres, 1 other408409: 1 began — 0 wars and battles, 0 risings, regime changes and massacres, 1 other409

What began in the 400s

By kind, the best known first.

States 8

Wars and battles 7

What ended in the 400s

States 6

Wars and battles 3

Born and died

Born 15

Died 14

States of the 400s

The states that stood at some time in the 400s, by region, the best known first, with who held the highest office in 400.

Europe: 27 statesEurope27Middle East and North Africa: 22 statesMiddle East and North Africa22South Asia: 26 statesSouth Asia26East and Southeast Asia: 30 statesEast and Southeast Asia30Americas and Oceania: 5 statesAmericas and Oceania5Location unknown: 21 statesLocation unknown21

Europe27 states

and 19 more; every state of Europe.

Middle East and North Africa22 states

and 14 more; every state of Middle East and North Africa.

South Asia26 states

and 18 more; every state of South Asia.

East and Southeast Asia30 states

and 22 more; every state of East and Southeast Asia.

Americas and Oceania5 states

Location unknown21 states

and 13 more; every state of Location unknown.

Open in the atlas

  • On the timeline, 380 – 429: every state, war and life of the 400s, region by region.
  • On the map in 405: the borders of the year, its cities under their names of the year, and what happened where.

Wikidata (CC0) · data built 2026-10-07 · Pastlas v2.13.1, by Oleh Voronko. The published atlas and its data are for non-commercial use.