Portal:Anarchism/Anniversaries/October/October 15 - Wikipedia
- 1884 – Birth of French anarchist militant and educator Stephen Mac Say
- 1896 – Birth of anarchist educator and Modern School activist Célestin Freinet
- 1920 – Italian anarchist militant and writer Errico Malatesta (pictured) is arrested in connection with worker occupations of Milanese factories
- 1920 – Bolshevik and Makhnovist forces sign an agreement to co-operate against the White Army general Pyotr Nikolayevich Wrangel during the Russian Civil War
- 1926 – Japanese anarchist militant Nakahama Tetsu (aka Tomioka Makoto) is executed for acts of propaganda of the deed