// Modern era

Union of Soviet Socialist Republics

Period
AD 1922 – AD 1991
Duration
approx. 69 years
Greatest extent
around AD 1946
Area (max.)
approx. 24.5 million km²
Union of Soviet Socialist Republics at its greatest extent (around AD 1946) · Borders: Cliopatria
▶ View on the interactive map

Period and duration

Union of Soviet Socialist Republics — according to the map data from AD 1922 to AD 1991, roughly 69 years. The dates refer to the time the empire is drawn as its own territory on the world map; historians sometimes date its founding and end differently.

Greatest extent

Union of Soviet Socialist Republics — greatest extent around AD 1946: the mapped borders then cover about 24.5 million km², roughly 16.4% of Earth's land area. The area is calculated from the border lines of the map and is therefore an approximation.

AD 1922Area according to the map data (max. 24.5 million km²)AD 1991

Predecessors and successors

States that ruled the same territory directly before and after:

Before (AD 1921)

No predecessors in the map data.

After

  • Russian Federation
  • Kazakhstan

Neighbours around AD 1946

The largest states in the region at the same time:

Learn more

Borders and dates: Cliopatria / Seshat Global History Databank (CC BY 4.0). Coastlines: Natural Earth. Text: Centaurian.