Beta — All features are temporarily free. Send feedback

Southeast Asia in 1923

1923 is the year of the Treaty of Lausanne. This map shows the 10 states and peoples the data has for Southeast Asia in that year.

Map of Southeast Asia in 1923 with 10 states and peoples
Borders: Cliopatria, Seshat Global History Databank (CC BY 4.0). Coarse outlines: check and adjust them for your story.

Watch these borders move

Play the changes on an animated map, in your browser. Free, no account needed.

States and peoples in Southeast Asia in 1923

Largest first, by area on this map.

  • Dutch East Indies
  • British Colonial Empire
  • French Indochina
  • British Raj
  • Rattanakosin Kingdom
  • Kuomintang
  • United States of America
  • Empire of Japan
  • Portuguese Republic
  • Commonwealth of Australia

New on the map since 1898

Kuomintang · Portuguese Republic · Commonwealth of Australia

Gone from the map by 1948

British Raj · Rattanakosin Kingdom · Kuomintang · Empire of Japan · Portuguese Republic

Animated maps of this time

Southeast Asia in other years

Other regions in 1923

The outlines are coarse and follow the Cliopatria dataset: borders before modern surveys are estimates, and a blank area means the data has no state on record there, not that nobody lived there. A state that changed hands during the year can appear together with its successor.