Jean-Jacques Dessalines (French pronunciation: [ʒɑ̃ ʒak dɛsalin]; Haitian Creole: Jan-Jak Desalin; 20 September 1758 – 17 October 1806) was the first Haitian Emperor, leader of the Haitian Revolution, and the first ruler of an independent Haiti under the 1805 constitution. Initially regarded as governor-general, Dessalines was later named Emperor of Haiti as Jacques I (1804–1806) by generals of the Haitian Revolutionary army and ruled in that capacity until being assassinated in 1806. He spearheaded the resistance against French rule of Saint-Domingue, and eventually became the architect of the 1804 massacre of the remaining French residents of newly independent Haiti. Alongside Toussaint Louverture, he has been referred to as one of the fathers of the nation of Haiti. Under the rule of Dessalines, Haiti became the first country in the Americas to permanently abolish slavery.
Dessalines served as an officer in the French army when Saint-Domingue was fending off Spanish and British incursions. Later he rose to become a commander in the revolt against France. As Toussaint Louverture's principal lieutenant, he led many successful engagements, including the Battle of Crête-à-Pierrot. In 1802, Louverture was betrayed and captured, and sent to prison in France, where he died. Thereafter, Dessalines became the leader of the revolution and Général-Chef de l'Armée Indigène on 18 May 1803. His forces defeated the French army at the Battle of Vertières on 18 November 1803. Saint-Domingue was declared independent on 29 November and then as the independent Republic of Haiti on 1 January 1804, under the leadership of Dessalines, chosen by a council of generals to assume the office of governor-general.