1800

Years: 1797 1798 1799 - 1800 - 1801 1802 1803
Decades: 1770s 1780s 1790s - 1800s - 1810s 1820s 1830s
Centuries: 17th century - 18th century - 19th century

1800 was a common year starting on Wednesday (see link for calendar).

Contents

1 Events

Events

March 14 - Cardinal Barnaba Chiaramonti is elected pope Pius VII.
March 21 - Pius VII becomes Pope
April 24 - US Library of Congress founded.
May 5 - Great Britain passes the Act of Union to join Great Britain and Ireland into the United Kingdom to take effect on 1 January 1801. The act is signed by King George III in August.
May 15 - Napoleon Bonaparte crosses the Alps and invades Italy.
June 14 - Battle of Marengo, Napoleon defeats the Austrian troops near Marengo, Italy .
June 2 - First smallpox vaccination in North America, at Trinity, Newfoundland .
June 27 - Pascha Jussuf Karamanli of Tripoli declares war on Sweden by having the flagpole on the consulate chopped down.
September 5 - The island of Malta, that was occupied by the French, is conquered by British troops.
November 1 - US President John Adams becomes the first President of the United States to live in the Executive Mansion (later renamed the White House).
November 17 - The U.S. Congress holds its first Washington, DC session.
December 3 - Battle of Hohenlinden, the French army defeats the Austrian troops.
December 24 - An assault on Napoleon Bonaparte fails in Paris.
Invention of the voltaic pile by Alessandro Volta: the first chemical battery
The infrared radiation is discovered by Wilhelm Herschel.
The Althing of Iceland, the world's oldest parliament, is abolished.

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