Individualist anarchism in France has developed a line of thought that starts from the pioneering activism and writings of Pierre-Joseph Proudhon and Anselme Bellegarrigue in the mid-19th century. In the early 20th century, it produced publications such as L'En-Dehors, L'Anarchie and around its principles it found writers and activists such as Émile Armand, Han Ryner, Henri Zisly, Albert Libertad and Zo d'Axa. In the post-war years, there appeared the publication L'Unique and activist writers such as Charles-Auguste Bontemps. In contemporary times, it has found a new expression in the writings of the prolific philosopher Michel Onfray.