Italian anarchism as a movement began primarily from the influence of Mikhail Bakunin,Giuseppe Fanelli, and Errico Malatesta. From there it expanded to include illegalist individualist anarchism and anarcho-syndicalism. It participated in the biennio rosso and survived fascism. The synthesist Italian Anarchist Federation appeared after the war, and the old factions alongside platformism and insurrectionary anarchism continue today.
When the Italian section of the International Workingman's Association was formed in 1869, new and more famous (or infamous) anarchists began appearing on the scene, notable individuals include Carlo Cafiero and Errico Malatesta. Within the Italian section of the IWMA the ideas of Anarchist Communism as a clear, cohesive movement were formed. At an 1876 conference in Florence, the Italian section of the International Workingman's Association declared the principles of Anarchist-Communism, proclaiming:
The Italian Federation considers the collective property of the products of labour as the necessary complement to the collectivist programme, the aid of all for the satisfaction of the needs of each being the only rule of production and consumption which corresponds to the principle of solidarity. The federal congress at Florence has eloquently demonstrated the opinion of the Italian International on this point...
It was also in Italy that early Anarchist attempts at revolution began. Bakunin was involved in an insurrection taking place in Florence in 1869, and in a failed attempt at insurrection in 1874 in Bologna. In 1877, Errico Malatesta, Carlo Cafeiro, and Costa began an attempt at revolution in Italy. They liberated two villages in Campania before being put down by the military.