Name one problem that led to the Civil War.

Why this is the answer

Three answers are accepted, and they are really three views of one conflict. Slavery is the root: the southern states feared the federal government would end it, and the South's agriculture-based economy depended heavily on slave labor while the North's was more industrial and did not. That is the economic reason. States' rights is the argument the southern states used, insisting they could make their own decisions and refuse to follow the national government when it contradicted them. Eleven southern states voted to secede and form the Confederate States of America, and the northern states fought to keep the country together. Memory hook: slavery is the cause, economics is the reason it held on, states' rights is the argument.