Answer:
The ettlement in the western United States
Native Americans sent to reservations
The foundation of the Populist Party
Step-by-step explanation:
The construction of the Transcontinental Railroad, as well as the discovery of gold, silver, and copper in many western states, led to the rapid settlement of the western United States. By 1890, 430 million acres in the Far West were settled, much more than the previous 250 years.
After 30 years of war, 250,000 Native Americans who lived on the Great Plains were enclosed in reservations to allow the westward settlement.
The Populist Party was founded with the support of western farmers affected by the depression that arose in rural America who wanted a political voice against the railroad tycoons.