Italian anarchism as a movement began primarily from the influence of Mikhail Bakunin, Giuseppe Fanelli, and Errico Malatesta. Rooted in collectivist anarchism and social anarchism, it expanded to include illegalist individualist anarchism, mutualism, anarcho-syndicalism, and especially anarcho-communism. In fact, anarcho-communism first fully formed into its modern strain within the Italian section of the First International. Italian anarchism and anarchists participated in the biennio rosso and survived Italian Fascism. Platformism and insurrectionary anarchism were particularly common in Italian anarchism and continue to influence the movement today. The synthesist Italian Anarchist Federation appeared after the war, and autonomismo and operaismo especially influenced Italian anarchism in the second half of the 20th century. Source: Wikipedia (en)