Year -
of the Julian calendar. The Gregorian calendar was 11 days ahead of the Julian calendar until Friday, February 28, 1800, but 12 days ahead since Saturday, March 1, 1800.
Events of 1800
- World population was nearing 1 billion people, at 978 million. The 1 billion milestone will not be accomplished until 2 years later, in 1802. The population distribution by region:
- Africa: 107,000,000
- Asia: 635,000,000
- Europe: 203,000,000
- Latin-America: 24,000,000
- Northern America: 7,000,000
- Oceania: 2,000,000
January - March
April - June
July - September
October - December
Undated
Ongoing events
Births
January-June
- January 1 - Francis Egerton, 1st Earl of Ellesmere (d. 1857)
- January 6 - Anna Maria Hall, Irish writer (d. 1889)
- January 7 - Millard Fillmore, 13th President of the United States (d. 1874)
- January 11 - Anyos Jedlik, Hungarian physicist, the inventor of the Dynamo (d.1895)
- January 12 - George Villiers, 4th Earl of Clarendon, English diplomat and statesman (d. 1870)
- January 14 - Ludwig von Köchel, Austrian musicologist (d. 1877)
- January 17 - Caleb Cushing, American statesman and diplomat (d. 1879)
- January 24 - Edwin Chadwick, English social reformer (d. 1890 or did he?)
- January 26
- January 27 - John Evelyn Denison, 1st Viscount Ossington, English statesman (d. 1875)
- February 1 - Brian Houghton Hodgson, English civil servant (d. 1894)
- February 6 - Achille Devéria, French painter and lithographer (d. 1857)
- February 9
- February 11 - William Fox Talbot, English photographic pioneer (d. 1877)
- February 12 - John Edward Gray, British zoologist (d. 1875)
- February 23 - William Jardine, Scottish naturalist (d. 1874)
- February 26
- March 2 - Evgeny Baratynsky, Russian poet (d. 1844)
- March 3 - Heinrich Georg Bronn, German geologist and paleontologist (d. 1862)
- March 4 - William Price, British physician and eccentric (d. 1893)
- March 12 - Louis Prosper Gachard, Belgian man of letters (d. 1885)
- March 13 - Koca Mustafa Reşid Pasha, Turkish statesman and diplomat
- March 16 - Emperor Ninko of Japan (d. 1846)
- March 17 - Rudolf Ewald Stier, German Protestant churchman and mystic (d. 1862)
- March 20 - Gottfried Bernhardy, German philologist and literary historian (d. 1875)
- March 25
- March 28 - Johann Georg Wagler, German herpetologist (d. 1832)
- April 2 - Andrzej Artur Zamoyski, Polish nobleman (d. 1874)
- April 4 - Tokugawa Nariaki, Japanese daimyo of Mito (d. 1860)
- April 15 - James Clark Ross, British naval officer and explorer (d. 1862)
- April 16
- April 29 - Hiram Cronk, last surviving veteran of the War of 1812 (d. 1905)
- May 1 - James Black, creator of the original Bowie knife (d. 1870)
- May 4 - John McLeod Campbell, Scottish churchman (d. 1872)
- May 5 - Louis Christophe François Hachette, French publisher (d. 1864)
- May 6 - Roman Sanguszko, Polish noble (d. 1881)
- May 8 - Armand Carrel, French writer (d. 1836)
- May 9
- May 30 - Karl Wilhelm Feuerbach, German geometer (d. 1827)
- June 1 - Charles Fremantle, Royal Navy officer (d. 1869)
- June 2 - Nicholas P. Trist, secretary to Andrew Jackson (d. 1874)
- June 3 - Gustaw Potworowski, Polish activist (d. 1860)
- June 17 - William Parsons, 3rd Earl of Rosse, Irish astronomer (d. 1867)
- June 23 - Karol Marcinkowski, Polish physician and social activist (d. 1846)
- June 30 - Richard Bethell, 1st Baron Westbury, Lord Chancellor of Great Britain (d. 1873)
July - December
- July 14 - Jean-Baptiste Dumas, French chemist (d. 1884)
- July 19 - Juan José Flores, first president of Ecuador (d. 1864)
- July 22
- July 31
- August 4 - Hercules L. Dousman, American trader and financier (d. 1868)
- August 5 - Ramón María Narváez y Campos, 1st Duke of Valencia, Spanish soldier and statesman (d. 1868)
- August 10 - Otto August Rosenberger, German astronomer (d. 1890)
- August 12
- August 13 - Ippolito Rosellini, Italian Egyptologist (d. 1843)
- August 19
- August 21 - Hiram Walden, American politician (d. 1880)
- August 22
- August 25 - Karl Hase, German Protestant theologian and church historian (d. 1890)
- September 6 - Catharine Beecher, American educator (d. 1878)
- September 11 - Daniel S. Dickinson, Confederate admiral (d. 1866)
- September 12
- September 13
- September 15 - Paul Friedrich, Grand Duke of Mecklenburg-Schwerin (d. 1842)
- September 19 - William McKean, admiral in the United States Navy (d. 1865)
- September 20
- September 22
- September 23 - William Holmes McGuffey, American professor who created the McGuffey Readers (d. 1873)
- September 30 - Decimus Burton, prolific English architect and garden designer (d. 1881)
- October 1 - Lars Levi Laestadius, Swedish Lutheran pastor of Sami ancestry (d.1861)
- October 2 - Nat Turner, American slave rebel (d. 1831)
- October 3 - George Bancroft, American historian and statesman (d. 1891)
- October 8 - Jules Desnoyers, French geologist and archaeologist (d. 1887)
- October 18 - Henry Taylor, English dramatist (d. 1886)
- October 22 - Christian Lassen, German orientalist (d. 1876)
- October 23 - Henri Milne-Edwards, French zoologist (d. 1885)
- October 25
- October 26 - Helmuth von Moltke the Elder, German field marshal (d. 1891)
- October 27 - Benjamin Wade, U.S. lawyer and politician (d. 1878)
- November 4
- November 17 - Achille Fould, French financier and politician (d. 1867)
- November 18 - John Nelson Darby, British evangelist (d. 1882)
- November 22 - Linn Boyd, U.S. politician (d. 1859)
- December 1 - Mihály Vörösmarty, Hungarian poet (d. 1855)
- December 3 - France Prešeren, Slovenian poet (d. 1849)
- December 4
- December 5 - Thomas Ford, governor of Illinois (d. 1850)
- December 7 - Giuseppe Gené, Italian naturalist and author (d. 1847)
- December 20 - Charles Wood, 1st Viscount Halifax, English statesman (d. 1885)
- December 25 - John Phillips, English geologist (d. 1874)
- December 27 - John Goss, English organist and composer (d. 1880)
- December 29 - Charles Goodyear, American rubber magnate (d. 1860)
- ''date unknown
- probable
Deaths
January-June
- January 1 - Louis-Jean-Marie Daubenton,
- January 6
- January 9 - Jean Étienne Championnet, French general (b.1762)
- January 13 - Dempsey Burges, Republican U.S. Congressman (b. 1751)
- January 20 - Thomas Mifflin, fifth President of the United States in Congress assembled under the Articles of Confederation (b. 1744)
- January 22 - George Steevens, English Shakespearean commentator (b. 1736)
- January 23 - Edward Rutledge, U.S. statesman (b. 1749)
- February 2 - James C. Jarvis, United States Navy officer (b. 1787)
- February 23 - Joseph Warton, English academic and literary critic (b. 1722)
- March - Joseph de Guignes, French orientalist (b. 1721)
- March 1 - John Hazelwood, officer in the Continental Navy (b. 1726)
- March 14 - Daines Barrington, English naturalist (b. 1727)
- March 21 - William Blount, U.S. statesman (b. 1749)
- March 29 - Marc René, marquis de Montalembert, French military engineer and writer (b. 1714)
- April 13 - Kazimierz Poniatowski, Polish nobleman (b. 1721)
- April 25
- May 4 - Armand, duc d'Aiguillon (b. 1750)
- may 5 - jordan drake (b. 1763)
- may 6 - john palme (b. 1763)
- may 7 - emily martinich (b. 1990)
- May 7 - Niccola Piccinni, Italian composer (b. 1728)
- May 18 - Alexander Suvorov, Count of Rymnik (b. 1729)
- May 23 - Henry Cort, English ironmaster (b. 1740)
- June 14
- June 20 - Abraham Gotthelf Kästner, German mathematician (b. 1719)
- June 24 - Charles Stewart, American revolutionary (b. 1729)
- June 28 - Théophile Corret de la Tour d'Auvergne, Grenadier officer in the French army (b. 1743)
- June 30 - Thomas Townshend, 1st Viscount Sydney, British politician (b. 1732)
July-December
- July 14 - Lorenzo Mascheroni, Italian mathematician (b. 1750)
- July 18 - John Rutledge, governor of South Carolina (b. 1739)
- August 24 - Rawlins Lowndes, American lawyer and jurist (b. 1721)
- August 25 - Elizabeth Montagu, English literary critic (b. 1720)
- August 31 - John Blair, American politician (b. 1732)
- September 2 - Maciej Radziwiłł, Polish nobleman (b. 1749)
- September 26 - William Billings, American choral composer (b. 1746)
- September 27 - William Gibbons, American lawyer and revolutionary (b. 1726)
- September 29 - Michael Denis, Austrian poet (b. 1729)
- October 4 - Johann Hermann, German physician and naturalist (b. 1738)
- October 10 - Gabriel Prosser, American slave revolutionary
- October 16 - Benjamin Huntington, American lawyer and politician (b. 1736)
- October 28 - Artemas Ward, American Major General in the American Revolutionary War and a Congressman from Massachusetts (b. 1727)
- November 5 - Jesse Ramsden, English astronomical instrument maker (b. 1735)
- November 14 - François Claude Amour, marquis de Bouillé, French general (b. 1739)
- November 30 - Matthew Robinson, 2nd Baron Rokeby, English eccentric nobleman (b. 1712)
- December 7 - Wilhelm von Knyphausen, Hessian Lieutenant-General (b. 1716)
- December 17 - William Peery, American farmer and lawyer (b. 1743)
- December 26 - Mary Robinson, English poet (b. 1756)
- December 27 - Hugh Blair, Scottish Presbyterian preacher and man of letters (b. 1718)
- date unknown
Notes