When Was Alcatraz Built?


Quick Answer

Alcatraz was built between 1910 and 1912 on Alcatraz Island, which is near San Francisco, Calif. During this time, it was a U.S. Army prison, and in 1933, the island was acquired by the U.S. Department of Justice. The building was modernized and, in 1934, became the Alcatraz Federal Penitentiary.

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Full Answer

Beginning in 1859, Alcatraz Island housed a citadel, also known as Fort Alcatraz. This functioned as a U.S. Army military defense post and later as a military prison. The prison closed in 1963 due to its high operating expenses. Today, the island is a public museum and is operated by the National Parks Service.

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