Portal:Anarchism/Anniversaries/September/September 23

• 1871 — Anarchist satirist, illustrator and abstract painter František Kupka (d. 1957) is born in Opocno, Bohemia
• 1880 — French anarchist singer Gaston Coute (d. 1911) is born
• 1911 — A manifesto is issued by the Junta of the anarchist Mexican Liberal Party, declaring war against authority, capital, and the Church; it was later broadcast and published in Regeneración