United States was an agrarian-based nation. Prior to World War II, people were involved in agriculture than other existing industries. Technological improvements in farming introduced during the war years reduced farming dependencies on manual labor freeing people to move to the cities to find white collar jobs after the war.
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Disagreements between the two formed early divisions within the government regarding policies on economics. They became the foundation for political parties as Hamilton wanted to have high trade tariffs and a centralized bank (Bank of the United States) and Jefferson wanted to concentrate on what would be good for the common man (the policies of the Democrat-Republicans).
The Wilmot Proviso, one of the major events leading to the American Civil War, it would have banned slavery in any territory to be acquired from Mexico in the Mexican War or in the future, including the area later known as the Mexican Cession, but which some proponents construed to also include the disputed lands in south Texas and New Mexico east of the Rio Grande.
<span>This was controversial between the Southern and Northern states, because this allowed the Union to always have more representatives in the House of Representatives and would make sure that the Union could control the Southern states and vote against anything will slavery. </span>
