15th Congress of the All-Union Communist Party (Bolsheviks)

[1] The congress ended an inner-party struggle, as Leon Trotsky, Gregorii Zinoviev and other opponents of Joseph Stalin were expelled from the party.

[3] The gathering was retrospectively remembered as the "Congress of the Collectivization of Agriculture and of the Socialist Offensive on All Fronts" in the official party history of 1962, although a major part of time spent by the gathering related to internal party politics and the final ritualistic repudiation of the United Opposition of Trotsky, Zinoviev, and their supporters, effectively ending a two-year factional war.

[3] Oppositionists Christian Rakovsky and Lev Kamenev held brief speeches in front of the Congress.

[4] Rakovsky's speech[5] was interrupted fifty-seven times by his opponents, including Nikolai Bukharin, Martemyan Ryutin, and Lazar Kaganovich.

[4] Although, unlike Rakovsky, Kamenev used the occasion to appeal for reconciliation, he was nevertheless interrupted twenty-four times by the same group.