1804

Centuries: 18th century - 19th century - 20th century

Decades: 1750s 1760s 1770s 1780s 1790s - 1800s - 1810s 1820s 1830s 1840s 1850s

Years: 1799 1800 1801 1802 1803 - 1804 - 1805 1806 1807 1808 1809

• January 1 - End of French rule in Haiti
• June 15 - The Twelfth Amendment to the U.S. 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.S. Constitution ratified by Tennessee, removing doubt surrounding adoption.
• February 15 - New Jersey becomes the last northern state to abolish slavery
• February 16 - First Barbary War[?]: Stephen Decatur leads a raid to burn the pirate-held frigate Philadelphia[?].
• February 21 - The first self-propelling steam engine or steam locomotive makes its outing at the Pen-y-Darren ironworks[?] in Wales.
• March 10 - Louisiana Purchase: In St. Louis, a formal ceremony is conducted to transfer ownership of Louisiana Territory from France to the United States.
• March 21 - Code Napoleon adopted as French civil law
• May 14 - The Lewis and Clark Expedition departs from Camp Dubois and begin their historic journey by traveling up the Missouri River.
• May 18 - Napoleon Bonaparte is proclaimed Emperor of France by the French Senate.
• November - Thomas Jefferson defeats Charles C. Pinckney[?] in U.S. presidential election
• December 12 - Spain declares war on Britain
• Napoleon Bonaparte declares himself emperor of France, Napoleonic Code adopted.
• Pere Lachaise Cemetery a 118 acre cemetery in Paris, France was founded.

Arts and Culture

• See 1804 in literature
• See 1804 in music

Births

• March 14 - Johann Strauss I, Austrian composer
• March 17 - Jim Bridger, pioneer (+ 1881)
• July 1 - George Sand (Amantine Aurore Lucile Dupin), writer
• July 4 - Nathaniel Hawthorne, writer
• July 28 - Ludwig Feuerbach, German Philosopher
• November 23 - Franklin Pierce, 14th president of the United States
• December 21 - Benjamin Disraeli, British politician, writer

Deaths

• February 12 - Immanuel Kant, German philosopher
• September 4 - Richard Somers, American naval officer