Answer:
Rail road companies facilitated settlement of the Great Plains because it provided a means of transportation for settlers to get to the location. The government had also provided land to these companies which they sold at an affordable cost to the new settlers. The area was a large expanse of flat land making it easy for newcomers to establish agriculture.
Autocracy-
government in which one person has uncontrolled or unlimited authority over others; the government or power of an absolute monarch.
Jazz, social justice were both big ones
Actually John Smith never met Pocahontas. That's only in the Disney movie.