Why did America fight the civil war??

The Civil war started due to a disagreement about economic interests, cultural values, the power of the federal government to control the states, and, most importantly, slavery in American society

Explanation:

"For nearly a century, the people and politicians of the Northern and Southern states had been clashing over the issues that finally led to war: economic interests, cultural values, the power of the federal government to control the states, and, most importantly, slavery in American society"