- 1886 - Trial of eight anarchists for the Haymarket bombing begins in Chicago. (pictured)
- 1911 - Federales & Maderistas retake Mexicali, Baja California from anarchist rebels led by Ricardo Flores Magón.
- 1914 - Luísa Adão born (d. 1999).
- 1997 - Cops raid anarchist centers & homes across Italy. The Italian Anarchist Federation denounced the raids as a thinly veiled attempt to intimidate & criminalize the movement.