People of the Revolution and the USSR
Political and party leadership
French Section of the Workers' International (SFIO)
The revolutionary wave and the world war 1917–1945
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GlossaryFrench Section of the Workers' International (SFIO)
- Marcel Cachin Marcel Cachin Leader who took the SFIO majority into the Comintern at Tours in 1920, founding the French Communist Party, and ran L’Humanité
- Léon Blum Léon Blum France's first Socialist prime minister, who left behind paid holidays and the 40-hour week
- Ludovic-Oscar Frossard Ludovic-Oscar Frossard SFIO general secretary who led the Tours vote to join the Comintern, became the first PCF general secretary and left in 1923
- Marceau Pivert Marceau Pivert The Socialist left's tribune who wrote 'Everything is possible', the Popular Front's left frontier
- Maurice Thorez Maurice Thorez A miner's son who built the Popular Front and led the French Communist Party for 34 years