Historical Organization
Second International
Second International
Details
Organization Timeline
The Second International is founded in Paris
📅 14 July 1889Socialist parties and labor organizations from many countries established a new international association. Engels encouraged the movement but did not control it; debates over colonialism, nationalism,...
Workers mark May Day amid international labor mobilization
📅 1 May 1890Following an 1889 decision by the Second International, workers held demonstrations for the eight-hour day and labor rights. Engels welcomed international working-class organization, whose action...
Luxemburg challenges exclusion at the Socialist International congress
📅 August 1893At the Zurich congress, aged 22, she argues for recognition of the new Polish social-democratic party. Delegates deny her a mandate, reflecting both factional disputes over Polish independence and the...
Engels attends the Zurich Congress of the Second International
📅 6 August 1893The congress brought socialist and labor organizations together amid debates over strategy and the conditions of workers across countries. Engels participated as a prominent elder, but international...
Luxemburg argues for international opposition to imperialism and colonialism
📅 September 1900At the Paris congress of the Second International she presses socialists to oppose imperialism, militarism and colonial policies. Her intervention links European workers’ politics to colonial...
Luxemburg helps develop an international anti-war position
📅 August 1907At the Stuttgart Socialist Congress she works with Lenin, Martov and others on a resolution calling workers to oppose war and use crisis to advance socialist change. The resolution later becomes a...
The dispute over Luxemburg’s economic theory broadens across the socialist press
📅 1913Reviews and counterarguments range across revisionist, centrist and orthodox Marxist positions. The controversy shows that her intervention was not merely a later anti-colonial reading: it was also...
World War I begins for Russia; Lenin opposes support for the war
📅 1 August 1914As the war expanded, Lenin condemned the major socialist parties that supported their governments’ war efforts. His call to turn the imperialist war into a struggle against ruling classes was...
Trotsky denounces the First World War as an imperialist conflict
📅 1 August 1914As European socialist parties backed their governments, Trotsky opposed the war and analyzed it as a struggle among imperial powers. His internationalist position connected European war to colonial...
Lenin asks What Next? as socialist parties fracture over the war
📅 9 January 1915Lenin examined the collapse of international socialist solidarity after leading parties backed their states in World War I. His response pressed for a new international, while other anti-war...
Lenin publishes The Collapse of the Second International
📅 1 May 1915The essay condemned socialist leaders who supported wartime governments and argued that imperialist rivalry had exposed their reformism. It connects anti-war politics with Lenin’s analysis of...