The forgotten Civil War legacy of America’s most notorious prison
Alcatraz Island in San Francisco Bay played a strategic role in the Civil War, safeguarding the Union from the western coast. The island's history began to take shape after the Mexican-American War, when the US expanded its western territories. Following the California Gold Rush, San Francisco became a vital port, and Alcatraz was established as a defensive position.
The island's story is one of evolution, from military stronghold to federal penitentiary. Its legacy is complex, reflecting the tumultuous era in American history during which it was formed. Further details about Alcatraz's role in the Civil War and its transformation over time are available from historical sources.