-
Lenin's funeral
Power struggle commences... Stalin begins to depict himself as rightful successor to Lenin -
Stalin denounces Trotsky and his faction (the left opposition)
The Thirteenth Party Congress, led by Stalin, Comintern chairman Grigory Zinoviev and Politburo chairman Lev Kamenev, denounced Trotsky and his faction, the Left Opposition. -
Trotsky forced to resign his military offices
-
14th Party Congress
The Fourteenth Party Congress endorsed the leadership of Stalin and his rightist ally Nikolai Bukharin, soundly defeating the New Opposition faction of Kamenev and Zinoviev. -
Trotsky expelled from Politburo
-
Trotsky and Zinoviev expelled from Communist Party