I recently learned about the Haitian revolution, and how it ended with Haiti completely abolishing slavery. This happened roughly 50 years before the American Civil War ended with the abolishment of slavery throughout the US. Before that, I know that slaves at least occasionally tried to escape to the northern states, but I'm curious if they ever tried to escape to Haiti? If they did, what unique challenges might they have faced? And if they didn't, why would an escaping slave choose to go north instead?
Although not the focus, this older answer does touch on this so should be of interest.