MIA: Encyclopedia of Marxism: Glossary of Periodicals
Fourth International (1940-1945)
Fourth International [New York] represented the continuation of Trotskyist politics in the United States after the tendency in the Socialist Worker Party that formed around Max Schactman split and took the SWP theoretical journal with them, New International. The index is in two parts: 1940-1945 and 1946-1956. In 1956 the magazine was renamed International Socialist Review. The index for ISR goes up to March 1970 at the moment.