Which issue was a significant factor that contributed to the Civil War?

The issue of states' rights played a significant role in contributing to the Civil War as it encapsulated the broader conflict between federal authority and state sovereignty. Many Southern states advocated for the belief that they had the right to govern themselves and make their own decisions regarding issues such as slavery and trade without federal intervention. The tension stemmed from the desire of these states to maintain their autonomy and protect their interests, particularly as the abolitionist movement gained momentum in the North and the federal government began to impose policies that were seen as infringing upon states' rights.

While economic disparity and tariffs were also influential factors leading to the Civil War, they were often tied directly to the larger debate on states' rights. For instance, the Southern economy was heavily reliant on agriculture and slave labor, creating a distinct economic identity that clashed with the industrial North. Immigration policies, although a consideration in American politics, did not play a central role in the conflicts that ignited the Civil War. Therefore, the issue of states' rights is accurately seen as a fundamental and significant factor that contributed to the division between the North and South, ultimately leading to the war.