Section 1
The World Rushes to California
Key Idea
News of gold in California spread across the world. People hoping to get rich rushed to the area. These newcomers, called forty-niners, came from the United States, Europe, China, Mexico, and many other places, making California's population suddenly very diverse.
This huge wave of people changed California almost overnight. Small settlements like San Francisco grew into busy cities. In the gold fields, new towns called boomtowns sprang up with tents and simple wooden buildings, growing crowded as more people arrived.