1800

Years:
1797 1798 1799 - 1800 - 1801 1802 1803

Decades:
1770s 1780s 1790s - 1800s - 1810s 1820s 1830s

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

List of state leaders in 1800
List of religious leaders in 1800

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 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 United States 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


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