Name changes:

• Russian Social Democratic Workers Party (bolsheviks)
• Russian Communist Party (bolsheviks)
• Communist Party of the Soviet Union (bolsheviks)
• CPSU
• USSR
• Russian SFSR; various SSRs

1920s

• Kronstadt
• 10th Party Congress
• New Economic Policy
• tax in kind
• Land Code
• electrification
• nepmen
• Workers' Opposition
• "On Party Unity"
• Leon Trotsky
• Grigory Zinoviev
• Lev Kamenev
• Nikolai Bukharin
• Joseph Stalin
• Commissar of Nationalities
• General Secretary
• nomenklatura
• Lenin Levy