Sectionalism, a noun denoting excessive devotion to local interests and customs, directly contributed to the American Civil War. It manifested as distinct economic, social, and political differences between the North and the South. For instance, the North increasingly industrialized and favored federal policies promoting manufacturing and trade, while the South remained agrarian, relying heavily on slave labor and advocating for states’ rights to protect their agricultural economy.
The growing divergence fostered deep distrust and antagonism. Competition for political power exacerbated these tensions. The South feared the North’s growing population and economic strength would allow it to dominate the federal government and potentially abolish slavery, a system integral to the Southern economy and social structure. Conversely, many Northerners viewed slavery as a moral wrong and a hindrance to national progress. These fundamentally different viewpoints intensified existing divisions.