This week in 1971, Federal Marshals forcibly removed the last members of the Indians of All Tribes from Alcatraz Island after a 19-month occupation.

Considered by many to be the pivotal event in what became known as the Red Power Movement—a Native American civil rights movement advocating for self-determination and sovereignty in response to cultural eradication and broken treaties—the occupation of Alcatraz attracted thousands of oppressed Native Americans to the former San Francisco Bay prison...