Answer:
American Civil War
Step-by-step explanation:
During the early to mid-19th century, the northern and southern regions of the United States developed increasingly divergent economic, social, and political systems. The north was industrialized and urban, while the south was predominantly agrarian and relied on slavery as a central part of its economy. These differences led to growing tensions between the two regions, with each side often prioritizing their own interests over those of the country as a whole.
Sectionalism contributed to the political and social divisions that ultimately led to the Civil War, as both the north and south became increasingly entrenched in their positions and unwilling to compromise. It also played a role in the development of political parties and their platforms, as both the Democratic and Republican parties came to represent the interests of their respective regions.
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