1804

Years :	1801 1802 1803 1804 1805 1806 1807
Years:	1801 1802 1803 1804 1805 1806 1807
Decades:	1770s 1780s 1790s 1800s 1810s 1820s 1830s
Centuries:	18th century · 19th century · 20th century

1804 in topic:
Humanities
Archaeology - Architecture - Art - Literature - Music
By country
Canada - Mexico - South Africa - U.S. - UK
Other topics
Rail Transport - Science - Sports
Lists of leaders
Colonial Governors - State leaders
Birth and death categories
Births - Deaths

1804 was a leap year starting on Sunday (see link for calendar).

1 Events
- 1.1 Unknown date
- 1.2 Ongoing events
2 Births
- 2.1 Unknown dates
3 Deaths

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Events

January 1 - End of French rule in Haiti
February 14 - First Serbian Uprising began.
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. Designed by Richard Trevithick, a Cornishman.
March 7 - John Wedgwood founds The Royal Horticultural Society
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 20 - Execution of the Duc d’Enghien for plotting against Napoleon
March 21 - Code Napoleon adopted as French civil law
April 26 - Henry Addington resigns as Prime Minister of the United Kingdom
May 10 - William Pitt the younger begins his second term as a Prime Minister of the United Kingdom
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.
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 11 - Duel between Alexander Hamilton and Aaron Burr results in the death of Alexander Hamilton.
July 27 - The Twelfth Amendment to the U.S. Constitution ratified by Tennessee, removing doubt surrounding adoption.
August 20 - Lewis and Clark Expedition: The "Corps of Discovery", whose purpose is to explore the Louisiana Purchase, suffers it first and last death when Sergeant Charles Floyd dies, apparently from acute appendicitis.
September 1 - German astronomer K. L. Harding discovers the asteroid Juno
Thomas Jefferson defeats Charles C. Pinckney in U.S. presidential election
November 30 - The Jeffersonian Republican-controlled United States Senate begin an impeachment trial against Federalist-partisan Supreme Court of the United States Justice Samuel Chase (he was charged with political bias but was acquitted by the Senate of all charges on March 1, 1805).
December 2 - At Notre Dame Cathedral in Paris, Napoleon Bonaparte crowns himself as the first Emperor of the French in a thousand years (the Napoleonic Code is adopted).
December 12 - Spain declares war on Britain

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Unknown date

Père Lachaise Cemetery a 118 acre (0.5 km²) cemetery in Paris, France is founded.
Nicolas-François Appert (1750-1841) develops a method to preserve food by means of canning.
Ohio University is chartered.

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