Complex sentence: The Haïtian Revolution, a slave revolt led by Toussaint L'Ouverture in the French colony of Saint-Domingue, established Haïti as a free, black republic, the first of its kind, and the second independent nation in the Western Hemisphere after the United States.
Split into simpler sentences: The Haïtian Revolution, a slave revolt led by Toussaint L'Ouverture in the French colony of Saint-Domingue, established Haïti as a free, black republic, the first of its kind. Haiti became the second independent nation that was a former European colony in the Western Hemisphere after the United States.