1916 - Clandestine meeting of the Council general of the militant Unione Sindacale Italiana (USI; anarcho-syndicalist labor union) in Florence, Italy, June 25, 26 & 27. The government has outlawed all opposition to WWI. The Council, meeting, reaffirms its opposition to the war.
1926 - In Paris, three Spanish anarchists are arrested, accused of preparing to assassinate Alphonse XII: Ascaso, Durruti & Jover. Louis Lecoin mounts a major protest campaign to prevent their extradition; gains their release in July of 1927.
