Organization of national communist parties for the propagation of communist doctrine with the aim of bringing about a world revolution. It was established by Lenin (1919) in Moscow at the Congress of the Third International with Zinoviev as its chairman. At its second meeting in Moscow (1920), delegates from 37 countries attended, and Lenin established the Twenty-One Points, which required all parties to model their structure on disciplined lines in conformity with the Soviet pattern, and to expel moderate ideologies. In 1943 Stalin dissolved the Comintern, though in 1947 it was revived in a modified form as the Cominform, to coordinate the activities of European communism. This, in turn, was dissolved in 1956.