World Congresses
- The pre-conference of the International Left Opposition (4–8 February 1933)
- The Conference for the Fourth International (29–31 July 1936)
- The founding conference of the Fourth International (3 September 1938)
- The Emergency Conference of the Fourth International (May 1940)
- The clandestine European conference of the Fourth International (February 1944)
- The first international conference after the war (3–5 March 1946)
- The Second World Congress (2–21 April 1948)
- The debate before the Third World Congress
- The Third World Congress (16–25 August 1951)
- After the Third World Congress (1952–1954)
- The Fourth World Congress and after (1954–1957)
- The Fifth World Congress and after (1957–1960)
- The Sixth World Congress and after (1961–1963)
- Reunification: the Seventh World Congress and after (1963–1965)
- The Eighth World Congress and after (1965–1969)
- The Ninth World Congress and after (1969–1974)
- The Tenth World Congress and after (1974–1979)
- The Eleventh World Congress and after (1979–1985)
- The Twelfth World Congress and after (1985–1991)
- The Thirteenth World Congress and after (1991–1995)
- The Fourteenth World Congress and after (1995–2003)
- The Fifteenth World Congress and after (2003–2010)
- The Sixteenth World Congress and after (2010–2018)
- The Seventeenth World Congress and after (2018–2025)
- The Eighteenth World Congress and after (since 2025)