The League of Revolutionary Black Workers (LRBW) was formed in 1969 in Detroit, Michigan. Its members were concentrated in the auto and other industrial sectors and represented increasing militancy and political action by Black workers in the context of both the Black liberation and Marxist-Leninist movements in the United States.
The Black Worker’s Congress (BWC) was created in 1971 in response to a manifesto written by the League of Revolutionary Black Workers. The BWC would be a separate organization that would be used to expand the ideas of the League across the United States. The periodicals SIEGE and Point of Production were published by the Black Worker's Congress.