People of the Revolution and the USSR

General Confederation of Labour (CGT, France) Left critics of Bolshevism 1877–1964 ○ Natural causes

From syndicalism through the Comintern to the Fourth International: a French internationalist across a century of revolution

Lenin described Rosmer as "a man who knows how to keep his mouth shut in five or six languages." — quoted in Philippe Robrieux's internal history of the French Communist Party

American-born French revolutionary syndicalist and a key figure in the Comintern leadership. With Pierre Monatte he published La Vie ouvrière and organised anti-war internationalism; he spent seventeen months in Moscow helping found the Red International of Labour Unions (Profintern). A Political Bureau member of the French Communist Party, he was expelled in 1924 for defending Trotsky, thereafter committing to the Left Opposition and Trotskyism. In 1938 he hosted the founding conference of the Fourth International at his home in Périgny. In his later years he signed the Manifesto of 121 against the Algerian War and wrote the classic memoir Lenin's Moscow.

Comintern Left critics of Bolshevism 1885–1939 ✕ Killed in prison

The polemicist who survived trial only to die in prison

"Do you know the difference between Stalin and Moses? Moses led the Jews out of Egypt, but Comrade Stalin led them out of the Politburo." — Radek to Boris Bazhanov, after Trotsky and Zinoviev were expelled from the Politburo.

A Polish-born Jewish journalist and diplomat who moved between the international social-democratic and communist movements. A close associate of Lenin, he participated in the Brest-Litovsk negotiations and the founding of the Comintern, serving on the Bolshevik Central Committee and as Comintern secretary. Renowned for his sharp polemics and biting wit, he led the Left Opposition before recanting publicly in 1930 and rejoining the Party. During the Great Purge he became the central defendant at the Second Moscow Trial, delivering theatrical confessions that earned him a 10-year sentence; in 1939 he was killed in prison on Stalin's orders.

Comintern Left critics of Bolshevism 1897–1935 ✕ Suicide

Comintern architect of the Canton uprising who led the first party-apparatus challenge to Stalin's collectivization

At the 16th Party Congress in 1930, he took the podium and openly assailed Stalin's forced collectivization. When he finished, the hall fell silent — his was one of the few speeches not greeted by applause.

A Georgian Bolshevik who left a deep mark on the Chinese revolution as a Comintern operative. In 1927 he chaired the August 7 Emergency Conference, engineered the removal of Chen Duxiu, elevated Mao Zedong to the Politburo, and approved the Canton uprising. He also advanced the theory that China's 'Asiatic mode of production' made it possible to bypass the capitalist stage. In 1930 he and Syrtsov formed the first party-apparatus opposition to Stalin's forced collectivization; demoted and marginalized, he shot himself in 1935 under threat of arrest.