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What are the main causes of the civil war?
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The main cause of the Civil War was the disagreement over the institution of slavery. Slavery had been a part of the American economy since the early 1600s, but it became an increasingly contentious issue in the 1850s as more and more people began to question its morality and legality. In 1854, Congress passed the Kansas-Nebraska Act, which allowed settlers to decide for themselves whether or not they wanted to allow slavery into their states. This led to a sharp increase in violence between pro-slavery and anti-slavery groups, with the former group gaining control of the government by 1860.