Revolutionary Socialist Labor Party, a radical split from the Socialist Labor Party in the United States. RSLP was formed in 1881 by anarchist-oriented elements of the SLP that had rallied around 'Revolutionary Clubs'. In 1883 it merged with other anarchist groups to form the International Working People's Association. 1883 disestablishments in the United States 1881 establishments in the United States Defunct anarchist organizations in North America Defunct socialist parties in the United States Labor parties in the United States Political parties disestablished in 1883 Political parties established in 1881 Socialist Labor Party of America