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when was the soviet union formed

The Soviet Union was formally formed on December 30, 1922, when the Treaty and Declaration on the Creation of the USSR were ratified at the First All- Union Congress of Soviets in Moscow.

Quick Scoop

  • Official founding date: December 30, 1922.
  • Full name at formation: Union of Soviet Socialist Republics (USSR).
  • Founding republics:
    • Russian SFSR
    • Ukrainian SSR
    • Byelorussian SSR
    • Transcaucasian SFSR (uniting Armenia, Azerbaijan, and Georgia).

Before and after 1922

  • Roots go back to the Bolshevik Revolution (October Revolution) of 1917, which created the Russian Soviet Federative Socialist Republic as the first communist state.
  • The Soviet Union as a multinational federal state was only officially proclaimed once civil war and consolidation of power allowed the 1922 union of these republics under a single federal government.
  • The USSR existed until its formal dissolution on December 26, 1991.

Information gathered from public forums or data available on the internet and portrayed here.