The Black Panther Party was a Marxist–Leninist and black power political organization founded by college students Bobby Seale and Huey P. Newton in October 1966 in Oakland, California. The party was active in the United States between 1966 and 1982, with chapters in many major American cities, including San Francisco, New York City, Chicago, Los Angeles, Seattle, and Philadelphia. They were also active in many prisons and had international chapters in the United Kingdom and Algeria. Upon its inception, the party's core practice was its open carry patrols ("copwatching") designed to challenge the excessive force and misconduct of the Oakland Police Department. From 1969 onward, the party created social programs, including the Free Breakfast for Children Programs, education programs, and community health clinics. The Black Panther Party advocated for class struggle, claiming to represent the proletarian vanguard.

The black power movement or black liberation movement was a branch or counterculture within the civil rights movement of the United States, reacting against its more moderate, mainstream, or incremental tendencies and motivated by a desire for safety and self-sufficiency that was not available inside redlined African American neighborhoods. Black power activists founded black-owned bookstores, food cooperatives, farms, media, printing presses, schools, clinics and ambulance services.