The Attica Prison Riot, also known as the Attica Prison Rebellion, Attica Massacre or Attica Prison Uprising, was the bloodiest prison riot in United States history and is one of the best-known and most significant flashpoints of the Prisoners' Rights Movement.The revolt was based upon prisoners' demands for better living conditions and political rights. On September 9, 1971, 1,281 out of the approximately 2,200 men incarcerated in the Attica Correctional Facility rioted and took control of the prison, taking 42 staff hostage.
