1804 On May 14, the Lewis and Clark Expedition begins in St. Louis. The explorers return to St. Louis on September 23, 1806.Timeline State: N.A.Timeline Country: United StatesTimeline Subjects: territorial expansionEra: 1801-1900 Read more about 1804
1800 The second U.S census reveals that the nation's population on August 4 is 5,308,483.Timeline State: N.A.Timeline Country: United StatesTimeline Subjects: populationEra: 1701-1800 Read more about 1800
1804 On January 1, Haiti becomes the second independent republic in the New World.Timeline State: N.A.Timeline Country: HaitiTimeline Subjects: international affairsEra: 1801-1900 Read more about 1804
1798-1800 Undeclared war with France.Timeline State: N.A.Timeline Country: N.A.Timeline Subjects: warEra: 1701-1800 Read more about 1798-1800
1793 King Louis XVI is beheaded on January 21, during the French Revolution.Timeline State: N.A.Timeline Country: FranceTimeline Subjects: international affairsEra: 1701-1800 Read more about 1793
1792-1793 The Federalist and Democratic-Republican parties formed.Timeline State: N.A.Timeline Country: United StatesTimeline Subjects: politicsEra: 1701-1800 Read more about 1792-1793
1791 Toussaint L'Ouverture launches the Haitian Revolution on August 22.Timeline State: N.A.Timeline Country: HaitiTimeline Subjects: international affairsEra: 1701-1800 Read more about 1791
1790 The first U.S census reveals that the nation's population on August 2 is 3,929,214.Timeline State: N.A.Timeline Country: United StatesTimeline Subjects: populationEra: 1701-1800 Read more about 1790
1789 The French Revolution begins on July 14 (Bastille Day).Timeline State: N.A.Timeline Country: FranceTimeline Subjects: international affairsEra: 1701-1800 Read more about 1789
1787 The Northwest Ordinance is enacted by Congress on July 13. It allows for the creation of future states and outlaws slavery in the Northwest Territory.Timeline State: N.A.Timeline Country: United StatesTimeline Subjects: territorial expansionEra: 1701-1800 Read more about 1787
