Max Stirner was a German philosopher linked mainly with the anarchist school of thought known as individualist anarchism who worked as a schoolteacher in a gymnasium for young girls.
"[4] In 1901, Catalan anarchist and free-thinker Francisco Ferrer established "modern" or progressive schools in Barcelona in defiance of an educational system controlled by the Catholic Church.
[6] La Escuela Moderna, and Ferrer's ideas generally, formed the inspiration for a series of Modern Schools in the United States,[5] Cuba, South America and London.
The first, and most notable, of the Modern Schools was founded in New York City, in 1911, two years after Francisco Ferrer i Guàrdia's execution for sedition in monarchist Spain on 18 October 1909.
[7] Student Magda Schoenwetter, recalled that the school used Montessori methods and equipment, and emphasised academic freedom rather than fixed subjects, such as spelling and arithmetic.
[8] After the 4 July 1914 Lexington Avenue bombing, the police investigated and several times raided the Ferrer Center and other labor and anarchist organisations in New York City.