Where did people in the United States begin to get manufactured goods from?

The East industrialized first, and, subsequently, the Midwest began an agricultural and industrial growth process which was underway by the 1840s. Together, the East and the Midwest constituted the American Manufacturing Belt, which was formed by the 1870s, whereas the South failed to industrialize commensurately.

Explanation:

becasue in the south they disallowed slavery but in the north slavery was illegial this boilled into because mexico wanted slavery