With the industrialization and market-oriented society, the US had developed toward capitalism. The laborers were also the consumers with their wages. However, unification brought about by these internal improvements was regional. While the North and the West were evolving in the same economic direction, the “Cotton South” was not. The South soon became the Cotton Kingdom with Eli Whitney's cotton gin. The market revolution and westward expansion heightened the nation's sectional divisions and the American Society would never be the same
