Final answer:
In 1848, James Marshall discovered gold near San Francisco, leading to the California Gold Rush.
Step-by-step explanation:
In 1848, James Marshall, a mechanic, discovered gold near San Francisco. This discovery marks the beginning of the California Gold Rush. Marshall found shiny flecks of gold in the American River while constructing a sawmill in Coloma, sparking a massive influx of individuals to the region in search of fortune.
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