Answer:
A year after the Oklahoma Land Rush, the director of the U.S census* bureau said that the frontier was closed.
Explanation:
*an official count or survey of a population, typically recording various details of individuals.
Answer:
Oregon Country
Explanation:
When Britain agreed to let the 49th parallel by the US/British boundary, the other state that was being debated with Britain is "Oregon Country"
This is evident in that, the 49th parallel agreement between Great Britain and the United States was about the north boundary of Louisiana Territory that lies between Lake of the Woods and the Rocky Mountains.
However, during this period, the two nations also decided to joint occupation of the Oregon country for some years.
Answer:
The railroad became a way for companies to ship to each other from across the country, transport raw materials to factories, and send final products to consumers.
