History of Hati By Jayla1234 Period: 1804 to 1821 Haiti is divided Period: 1821 to 1843 Reunited- Trouble with France Period: 1843 to 1915 Twenty two heads of state Period: 1915 to 1934 US in Haiti Period: 1934 to 1956 Trouble with Dominican Republic Period: 1957 to 1971 Papa Doc Duvalier Period: 1971 to 1986 Baby Doc Duvalier Period: 1990 to 1996 1990-1996 Aristide Period: 1996 to 2001 1996-2001 Preval Period: 2001 to 2004 Aristide Period: 2004 to 2010 Haiti Rebellion, United Nations (MINUSTAH)