John Shearer—The LIFE Picture Collection/Getty Images Scenes from the aftermath of the Attica Prison Riot, 1971. John Shearer—The LIFE Picture Collection/Getty Images Debris litters the floor ...

AP Photo The vacant prison yard was strewn with debris after the riot at the Attica State Correctional Facility in Attica, New York. Santi Visalli Inc./Getty Images ...

Inmates at the Attica Correctional Facility give the Black Power salute, 1971. (Photo by Bettmann / Getty Images) Turn in your “Right on’s” and “Power to the People’s.” ...

Attica State Prison, D Yard, September 13, 1971. (Bettmann via Getty Images) By signing up, you confirm that you are over the age of 16 and agree to receive occasional promotional offers for ...

Attica Correctional Facility in Wyoming County, N.Y. Showtime “I showed it to my nephew and his girlfriend, and they said, ‘I thought they were going to win,’” Nelson said. Prisoners were ...

Photo by Dan Farrell/NY Daily News Archive via Getty Images) Dan Farrell/NY Daily News Archive via Getty Images In September 1971, nearly 1,300 inmates in the Attica Correctional Facility in ...

Attica Correctional Facility Riot (Photo By: NY Daily News via Getty Images) New York Daily News / Getty Images. By Heather Ann Thompson. Updated: August 23, 2016 3:56 PM [ET] ...