Which development in 1862 led to rapid settlement of the great plains?

Homestead Act

Explanation:

The Homestead Acts were a series of laws that were passed in the United States in order to give public or government land to citizens. Nearly 10% of the total area of the United States was given away for free, mostly west of the Mississippi. The first Homestead Act was passed in 1862, allowing all citizens, including women and immigrants, to obtain a piece of land. Since 1866, the Acts included African Americans.

wwii

explanation:

no statements but ok.

the statement that best describes the idea of manifest destiny that was used in the 19th century would be that "it was fate that the united states would continue to  expand westward," since people thought the us was "destined" to do so.