The California National Trail commemorates which event?

Here is the question :

THE CALIFORNIA NATIONAL TRAIL COMMEMORATES WHICH EVENT?

Here is the option for the question :

• The American Revolution
• The Gold Rush
• The Louisiana Purchase
• The Industrial Revolution

The Answer:

And, the answer for the the question is :

Explanation:

[STC0012593]. When gold was discovered in California in 1848, it sparked one of the greatest migrations in the United States’ history. About 250,000 people, who would become known as “Forty-Niners,” flooded into the West Coast during the next decade. A historic route honoring this history now stretches across 10 states and covers more than 5,000 miles. There are a number of places in the Midwest to begin the path, and a similar number of places in California and Oregon to finish it.