E-mail the Socialist Labor Party or The PeopleThis is the official Web site of the Socialist Labor Party of America, the original political party of socialism in the United States. The SLP was established on a Marxist basis in 1890. This site includes facts about the SLP's history, its revolutionary principles and program, a definition of socialism, an SLP local directory and information about Daniel De Leon. It also includes online access to the SLP's official journal, The People, and a downloadable catalogue of books and pamphlets printed by the party's New York Labor News publishing arm, as well as online access to some of its printed materials.