1800
From the Simple English Wikipedia, the free encyclopedia that anyone can change
| Centuries: | 17th century - 18th century - 19th century |
| Decades: | 1770s 1780s 1790s - 1800s - 1810s 1820s 1830s |
| Years: | 1797 1798 1799 - 1800 - 1801 1802 1803 |
[change] Events
- World population hits 1 billion.
- March 14 - Cardinal Barnaba Chiaramonti is elected pope as Pius VII.
- March 21 - Pius VII is ordained.
- April 24 - U.S. Library of Congress founded.
- May 5 - Great Britain passes the Act of Union to join Great Britain and Ireland into the United Kingdom of Great Britain and Ireland 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 - U.S. 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.
- December 24 - Pierre Coudrin and Henriette Aymer de la Chevalerie found the Congregation of the Sacred Hearts of Jesus and Mary 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.
