The purpose of my project is to give you to understand some things about sectionalism of america so that we have a little knowledge about this. The sectionalism is the idea that one person has an allegiance to a smaller group of people, and not to the entire country. During the build up to the Civil War, sectionalism began to develop in the United States. Sectionalism is the belief that a person's region was superior to other sections of the country. ... The two sides of the debate over slavery were divided between the two main sections of the United States; the North and South. Sectionalism was caused by the issue of states' rights to the slavery and personal treatment of slaves. Sectional strife was caused by the expansion of the peculiar institution into western territories. Initially most northerners ignored the issue of slavery as it had a minimal role in their everyday life.