I hope this was the type.of answer u was looking for.
Most European governments thought that colonial rule would end much later. In colonies like Angola, Mozambique, Algeria, and Kenya African people were forced to fight wars to win their independence.They were increasingly driven to fight for an end to colonial rule. Self-rule became the slogan.
There was no railroad mileage in the pacific region in 1850 because of the lack of people,they could not get their supplies to the location.
Hope this helps :)
The correct answer is:
During the western cattle boom, the open range system allowed ranchers to graze herds on the open range, meaning public land once owned by the Plains Indians and their buffalo herds.
The western cattle boom brought thousands of settlers, mostly cattle ranchers that used the grasslands of the Great Plains to raise and sell cattle. The subsequent economic growth added to America's ascent to power.
It is probably westward expansion because that is what the time was called. The divine right meant that god gave the king the “right” to rule a country, so that isn’t an option.