Sectionalism, slavery, and states' rights were interconnected causes of the Civil War. Sectionalism refers to the division and loyalty to one's own region rather than the nation as a whole. Slavery was a major issue during this time, as the Southern states relied heavily on enslaved labor for their agrarian economy. States' rights referred to the belief that individual states had the right to make their own decisions, even if those decisions went against federal laws.
The Civil War happened because different parts of the country (sections) cared more about their own region than the whole country. Slavery was a big problem because the South depended on enslaved people to work on their farms. States' rights meant that individual states believed they had the right to make their own choices, even if it went against the national government.
