Final answer:
In the mid-1800s, people migrated to California due to the lure of striking it rich mining for gold during the California Gold Rush.
Step-by-step explanation:
In the mid-1800s, hundreds of thousands of people flocked to California due to the lure of striking it rich mining for gold. The discovery of gold in 1848 at Sutter's Mill sparked the California Gold Rush, attracting fortune seekers from all over the world. These individuals hoped to find gold and improve their economic prospects.
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