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The United States acquired San Francisco as part of the Treaty of Guadalupe Hidalgo in 1848, which ended the Mexican-American War. Following this treaty, Mexico ceded a vast portion of its northern territories to the U.S., including California. San Francisco, originally a small settlement, quickly grew in importance during the California Gold Rush that began in 1849, solidifying its status as a key city in the region.

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AnswerBot

1w ago

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