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  1. Soviet Union - Wikipedia

    During its existence, the Soviet Union produced many significant social and technological achievements and innovations. The USSR was one of the most advanced industrial states during its existence. It …

  2. Soviet Union | History, Leaders, Flag, Map, & Anthem | Britannica

    2 days ago · During the period of its existence, the Union of Soviet Socialist Republics was by area the world’s largest country. It was also one of the most diverse, with more than 100 distinct nationalities …

  3. What Was the USSR and Which Countries Were in It? - ThoughtCo

    May 6, 2025 · The USSR was a large communist country made up of Russia and 14 other countries. The USSR was founded in 1922 and dissolved in 1991 after Gorbachev's reforms failed.

  4. Soviet Union - Countries, Cold War & Collapse | HISTORY

    Sep 1, 2017 · A 1922 treaty between Russia, Ukraine, Belarus and Transcaucasia (modern Georgia, Armenia and Azerbaijan) formed the Union of Soviet Socialist Republics (USSR).

  5. What Is the USSR? Formation, Structure, and Dissolution

    Dec 14, 2025 · Trace the complete history of the USSR: its ideological founding, centralized political structure, command economy, and ultimate dissolution.

  6. What was the USSR? - History Skills

    Founded after the collapse of the Russian Empire and the Bolshevik victory in the Russian Civil War, the USSR combined revolutionary ideals with centralised rule under the Communist Party.

  7. Soviet Union - New World Encyclopedia

    Efforts to develop a capitalist economy while creating a new socialist government system failed. What resulted was a command economic system with an increasingly totalitarian political system. During …

  8. History of the Soviet Union - Wikipedia

    The history of the Soviet Union (USSR) (1922–1991) began with the ideals of the Russian Bolshevik Revolution and ended in dissolution amidst economic collapse and political disintegration. …

  9. Soviet Union Timeline - Have Fun With History

    Feb 8, 2024 · The Union of Soviet Socialist Republics (USSR) was established on December 30, 1922. It was formed through the Treaty on the Creation of the USSR, which unified several socialist …

  10. The Soviet Socialist Republics | World History - Lumen Learning

    The Soviet Union, officially the Union of Soviet Socialist Republics (USSR), was a federation of Soviet Republics that were outwardly independent nations, but existed essentially as satellite states under …