2nd May 1946: The Battle of Alcatraz began when armed inmates attempted to escape from the high security prison

By the time the authorities re-established control on the morning of 4 May, two prison officers and three perpetrators lay dead.

20th November 1969: Native Americans begin their occupation of Alcatraz Island

The Occupation of Alcatraz was launched by a group of 89 members of the Indians of All Tribes in an attempt to gain control under the Treaty of Fort Laramie that had been signed in 1868.