- ...that just three years after it was founded, the Spanish labor union Solidaridad Obrera (pictured) morphed into the Confederación Nacional del Trabajo?
- ...that Paul Feyerabend's theory of epistemological anarchism in the philosophy of science led him to be labeled the "worst enemy of science" by his detractors?
- ...that Nationalism and Culture, the magnum opus of German anarchist Rudolf Rocker, was lauded by three Nobel Prize laureates?
- ...that during the Spanish Civil War Solidaridad Obrera, published by an anarchist labor union, was Spain's highest-circulation newspaper?
- ...that prior to the emergence of anarcho-pacifism at the outbreak of World War II, there was a general agreement among anarchists that violence was inevitable?