Portal:Anarchism/Anniversaries/October/October 20
- 1895 – Anarcho-syndicalist writer Gaston Leval, active in the Spanish Civil War, is born in Saint-Denis, France.
- 1905 – A general strike is called during the 1905 Russian Revolution
- 1917 – An anarchist-inspired motion is passed at the first Congress of Factory Councils in revolutionary Russia in favour of workers' self-management
- 1923 – Anarchist Beat poet Philip Whalen is born in Portland, Oregon.
- 1945 – In the course of the Spanish Revolution, anarchist guérillas "El Quico", Jaime "Abisinio" Pares Adán and Juan "Roget" Salas Millón, help three prisoners escape from a Barcelona jail at the behest of the Committee of Resistance of the Confederación Nacional del Trabajo
- 2001 – The 20th annual Anarchist Bookfair is held in London