At least 10 to 15 black soldiers, including some slaves, fought against the British at the battles of Lexington and Bunker Hill.
Lincoln was trying to appeal to Southern voters by picking Andrew Johnson as his running mate. These two men were actually very different politically speaking. Lincoln was a Republican, Andrew Johnson was a Democrat. Lincoln was from the Midwest US, Andrew Johnson was from Tennessee.
Lincoln knew that having a Democratic Vice President who once represented a Confederate state (Tennessee) would allow his presidency to appeal to a wider range of voters.
Before it was a French colony, Haiti was called Saint-Domingue.
The Island itself was, and continues to be, called Hispaniola.
Haiti was the original name of the Island given it by the indigenous people, the Taino. This name was restored when Haiti achieved independence.
It made people believe that the British were being helped by God. With this defeat Elizabeth I was able to turn Britain into one of the most powerful nations with the best navy in the world until around 1972. Though the real reason behind the defeat was bad weather it did help Britain a lot, that's why it's considered important.