Final answer:
In 1969, Native American activists occupied Alcatraz Island as part of a civil rights movement, which is unrelated to the later Siege at Wounded Knee in 1973.
Step-by-step explanation:
In 1969, protesters for American Indian rights occupied Alcatraz Island in San Francisco Bay. This historical event was part of the modern Native American civil rights movement and involved a group of Native American activists from various tribes. They took control of the island, which had formerly housed a notorious federal prison, announcing plans to build an American Indian cultural center. The occupation saw efforts to negotiate an end by the federal government, but the occupiers stayed put until government forces removed the final holdouts on June 11, 1971.
The occupation of Alcatraz was a significant moment in the fight for Native American rights and set the stage for further actions by the American Indian Movement (AIM). Later on, AIM was involved in the Siege at Wounded Knee in 1973, which was another pivotal protest highlighting issues of tribal sovereignty and mistreatment by federal and local agencies. However, the Wounded Knee incident took place four years after the Alcatraz occupation and was unrelated to the 1969 protests.