, California, USA
1848 - California became U. S. property with Treaty of Guadalupe
The Treaty of Guadalupe Hidalgo, signed on February 2, 1848, marked a significant milestone in American history, as it concluded the Mexican-American War (1846-1848). Under the terms of the treaty, Mexico ceded a vast portion of its northern territories to the United States, which included present-day California, Nevada, Utah, Arizona, New Mexico, and parts of Colorado and Wyoming. This monumental land acquisition, often referred to as the Mexican Cession, expanded the U.S. by roughly 525,000 square miles, fundamentally reshaping the nation's geographical and political landscape.
California's transition to U.S. property was particularly notable due to its burgeoning economic potential, especially with the onset of the California Gold Rush in 1849. The influx of settlers and the rapid economic development that followed transformed California into a pivotal region within the United States. The treaty also included provisions to protect the property rights and cultural heritage of the Mexican citizens residing in the newly acquired territories, though these promises were not always fully upheld.
February 2, 1848
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