Answer: What helped the people of Haiti defeat Napoleon and the French was a successful slave revolt led by Toussaint L'Ouverture.
Explanation: The people of Haiti were able to defeat Napoleon and the French with the help of a successful slave revolt led by Toussaint L'Ouverture. The slave revolt began in 1791 and lasted for over a decade, during which the Haitian people, who were primarily enslaved Africans, fought against the French colonial authorities. L'Ouverture was a key leader in the revolt and was able to organize and unify the various rebel groups to defeat the French. The Haitian victory over the French was significant because it marked the first successful slave revolt in modern history and established Haiti as the first independent black nation in the world.