Alcatraz Island summary

Explore the history of Alcatraz Island in San Francisco Bay, California, U.S.

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Below is the article summary. For the full article, see Alcatraz Island.

Alcatraz Island, Rocky island in San Francisco Bay, California, U.S. It has an area of 22 acres (9 hectares) and is located 1.5 mi (2 km) offshore from the city of San Francisco. The site of the first lighthouse (1854) on the California coast, it became an army garrison (1859) and a military prison (1868). From 1934 to 1963 it served as a federal prison for dangerous civilian prisoners. Its famous inmates included Al Capone, George “Machine Gun” Kelly, and Robert Stroud, the “Birdman of Alcatraz.” It is now open to the public.

California Summary

California, constituent state of the United States of America. It was admitted as the 31st state of the union on September 9, 1850, and by the early 1960s it was the most populous U.S. state. No version of the origin of California’s name has been fully accepted, but there is wide support for the

United States Summary

United States, country in North America, a federal republic of 50 states. Besides the 48 conterminous states that occupy the middle latitudes of the continent, the United States includes the state of Alaska, at the northwestern extreme of North America, and the island state of Hawaii, in the

The Pacific Ocean, with depth contours and submarine features

Pacific Ocean Summary

Pacific Ocean, body of salt water extending from the 60° S parallel in the south to the Arctic in the north and lying between the continents of Asia and Australia on the west and North America and South America on the east. Of the three major oceans, the Pacific is by far the largest, occupying

North America Summary

North America, third largest of the world’s continents, lying for the most part between the Arctic Circle and the Tropic of Cancer. It extends for more than 5,000 miles (8,000 km) to within 500 miles (800 km) of both the North Pole and the Equator and has an east-west extent of 5,000 miles. It