critique of organic centralism and the party's programmatism, proposing to intervene more actively in the class. Until his death in 1970, Bordiga devoted himself to contributing to the task of reconstructing the theoretical and political basis of the Party. The "Fundamental Theses of the Party" (1951), "Considerations on the Organic Activity of the Party in a Situation which is Generally and Historically Unfavorable" (1965), "Theses on the Historic Duty, the Action and Structure of the World Communist Party" (1965), and "Supplementary Theses" (1966) gave the party its theoretical, political, and organizational structure. In late 1973 the ICP underwent a serious split, where a group of militants lead by the Florence section were expelled and had to reorganize and move forward, publishing Il Partito Comunista. The International Communist Party continues publishing in several languages, including the English paper "The Communist Party" and magazine "Communist Left". Meanwhile, in 1982, the Il Programma ICP was decimated by further splits within their ranks, particularly in France and Italy. From one of these splits came a number of new organizations under the ICP name, one of which publishes Le Prolétaire in France and Il Comunista in Italy, and another publishes "El Comunista" in Spain. There have been several tendencies and organizations over the years which have more or less claimed their heritage to International (Italian) Communist Left or directly to the original International Communist Party. Another tendency that claims to carry the legacy of the ICP is a group (expressly not a party) started in 1981 called 'n + 1' which publishes the review under same name and collects their volumes and booklet including articles and more detailed treatments of various subjects in the series "Quaderni Internazionalisti". Theses On Marxist theory The International Communist Party holds that the doctrine of the party is founded on the principles of the historical materialism of the critical communism set out by Marx and Engels in The Communist Manifesto, Das Capital, and their other fundamental works and which formed the basis of the Communist International constituted in 1919 and of the Italian Communist Party founded at Leghorn in 1921 as a section of the Communist International and was a unitary and invariant body. The class party is accepted as the indispensable organ for the proletarian revolutionary struggle. It has always held that the party must historically get rid, once and for all, of the practice of alliances, even for