Slavery that led to the Civil War, or The War of the Brothers,
There's no perfect answer to this question (even the question acknowledges this problem). In my opinion, the U.S. was put on a path to Civil War the very moment the U.S. Constitution was signed. The Constitution brought a bunch of colonies into a union together, even though some of those colonies relied heavily on slavery and believed that slavery was morally defensible, while others did not rely on slavery and believed that slavery was a terrible thing. It was only a matter of time before the debate over slavery turned into a violent clash over slavery.
They disappeared because most were tortured or imprisoned or murdered and some escaped but not enough to say they fled in exile because thats not the majority
The U.S. State of South Carolina and Columbia.
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