Portal:Anarchism/Anniversaries/September/September 26
- 1876 – The Anarchist International begins its fourth congress in Bern, Switzerland.
- 1919 – The anarchist Revolutionary Insurrectionary Army of Ukraine reverse several months of retreat, by turning on and routing the pursuing White Army
- 1936 – Spanish Revolution: The Confederación Nacional del Trabajo joins the Generalitat de Catalunya, with Josep Juan i Domènech acting as Minister of Supplies, Joan Porqueras i Fàbregas as Minister of Economy, and Antonio García Birlán as Minister of Health