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| Centuries: 18th century - 19th century - 20th century | |
| Decades: 1770s 1780s 1790s - 1800s - 1810s 1820s 1830s | |
| Years: 1800 1801 1802 1803Events January 30 Monroe and Livingston sail for Paris to discuss, and possibly buy, New Orleans. They end completing the Louisiana Purchase. February 24 The Supreme Court of the United States, in Marbury v. Madison establishes the principle of judicial r 1804Events January 1 End of French rule in Haiti June 15 The Twelfth Amendment to the U. Constitution ratified by New Hampshire, and arguably becomes effective (subsequently vetoed by the Governor of New Hampshire) July 27 The Twelfth Amendment to the U. 1805Events January 11 Michigan Territory is created. February 15 Harmony Society officially formed March 1 Justice Samuel Chase acquitted of impeachment charges by the U. Senate April 27 United States Marines and Berbers attack the Tripolitan city of Derna (T 1806Events January 8 Cape Colony becomes a British colony January 10 Dutch in Cape Town surrender to the British January 19 The United Kingdom occupies the Cape of Good Hope March 23 After traveling through the Louisiana Purchase and reaching the Pacific Ocea 1807Events February Napoleon attacks Russia February 8 Battle of Eylau Napoleon defeats Russians under General Benigssen February 19 In Alabama, Former Vice President of the United States Aaron Burr is arrested for treason. March 2 The United States Congress 1808Events January 1 Importation of slaves into the United States is banned February 11 Anthracite coal first burned as fuel, experimentally. February Russia issues an ultimatum to Sweden, to join France, Denmark and Russia and attacks Finland. March 26 Charl 1809Events January 16 Peninsular War: The British defeat the French at the Battle of Corunna. February 3 Illinois Territory was created. February 11 Robert Fulton patents the steamboat. February 20 A decision by the Supreme Court of the United States states t | |