The south was mainly agricultural, cultivating cotton in some form was most people's entire livelihood, creating sort of a cultural divide from the north. plus, the menial and arduous labour in the south was incredibly appealing for slave owners, but this didn't happen in the north where factories and mills were everywhere and staffed by non enslaved people. cotton united the two by the south growing it and the north turning it into textiles and other finished products. together they had quite a good system since each part was able to specialize
Answer:
Explanation:
Sectionalism was the major cause of the United States Civil War because it was integral to creating the Southern social life as well as shaping its political tendencies, not the issue of slavery, which only affected a very small percent of southerners.
They created tons of things, the one you are asking for would be the assembly line.