He, like many other Americans at the time, believed in the Manifest Destiny.
The Manifest Destiny was the belief that America was destined to reach the Pacific ocean (from sea to shining sea).
Other than the fact that the U.S. economy subsisted on agriculture during the early 19th century, there were expansions that would make the agricultural field even bloom with more opportunities. This included the construction of canals and steamboats. This lead to a boost in the agricultural indistry. Other than that, the poorer regions had to rely on growing their own food and selling their produce for money in order to survive. Because of these two factors, agriculture was the leading occupation during the 1800s.
Desert that’s because there are mountains like the mt. Everest
the north had more people and less farmland so they didnt have the need for slaves therefore they thought that people didnt need slaves. meanwhile the south had mor farmland and a higher need of slaves
