Here is a timeline of events in Haiti in the past 20 years:
Feb. 7, 1986 - Jean-Claude "Baby Doc" Duvalier is forced into exile by an uprising, ending a 29-year family dictatorship. His father Francois "Papa Doc" Duvalier seized power in 1957 and held it until his death in 1971. Army chief Lieutenant General Henri Namphy is appointed to oversee a two-year transition to democracy.
Dec. 16, 1990 - Populist priest Father Jean-Bertrand Aristide is the landslide winner of a presidential election, Haiti's first free and peaceful polls.
Sept. 30, 1991 - Aristide is overthrown by the military.
September 1994 - Thousands of U.S. troops arrive to restore democracy. Aristide returns on Oct. 15.
Dec. 17, 1995 - Former Prime Minister Rene Preval, from Aristide's Lavalas party, is elected president.
Nov. 25, 2000 - Aristide wins another presidential election, this one boycotted by main opposition parties.
Feb. 29, 2004 - Aristide leaves Haiti amid a rebellion. U.S. Marines land to restore order, later replaced by Brazilian-led U.N. peacekeepers.
March 9, 2004 - Gerard Latortue, a former U.N. bureaucrat, is appointed interim prime minister.
May 24, 2004 - Severe floods swamp entire villages in Haiti and the Dominican Republic. At least 2,600 people are dead or missing.
Sept. 19, 2004 - Floods in the wake of tropical storm Jeanne kill more than 3,000 people, mostly in the city of Gonaives.
Feb. 16, 2006 - Preval is declared the winner of the Feb. 7 presidential election after an internationally brokered deal over disputed results.
April 12, 2008 - Lawmakers dismiss Prime Minister Jacques Edouard Alexis after two weeks of riots and demonstrations over escalating food prices in which six people were killed.
August/September 2008 - Four tropical storms and hurricanes batter Haiti -- Fay, Gustav, Hanna and Ike -- killing more than 800 people and making nearly 1 million homeless or in need of help.
Sept. 5, 2008 - Michele Pierre-Louis belatedly takes office as prime minister with a new government.
Nov. 7, 2008 - At least 95 people are killed when the three-storey La Promesse school collapses on the outskirts of Port-au-Prince. Authorities blame shoddy construction. A second school collapses five days later, injuring nine people.
May 19, 2009 - Former U.S. President Bill Clinton is appointed U.N. special envoy for Haiti.
Nov. 7, 2009 - Jean-Max Bellerive is confirmed as new prime minister succeeding Michele Pierre-Louis, who was dismissed by the Senate on Oct. 30 for allegedly failing to improve the country's economy.
Jan. 12, 2010 - A catastrophic 7.0 magnitude earthquake strikes Port-au-Prince, killing thousands of people and devastating the capital.
- Reuters - Thomson Reuters Foundation
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