Because the united states believed that it was its well... "destiny" to go out in the world or at least west, and take what ever land was there, as the united states was the great liberator for the people who wanted to be free- so it was its destiny to grow its borders, anyways, this made adapting new states into the union almost policy and the united states was eager to add more land and territory to its borders.
The invention of the cotton gin was a revolution in the cotton industry. Due to the manner in which this sector was exploited in the US, it led to a large increase in slavery in the Southern states, in order to meet the constantly growing demand for cotton using a larger workforce.
Hope this helps!
Answer:
earthquakes
please mark me as brainliest
They move in response to an offer of Free land in Praire Province from 1858 to early 1900.
On that period, Canada did a lot of intensive advertising about this policy, and as a result, a lot of Immigrants come to Canada seeking a new life.
It was the most important period of canada's population growth
