Centuries: 17th century – 18th century – 19th century
Decades: 1770s 1780s 1790s – 1800s – 1810s 1820s 1830s
Years: 1797 1798 1799 – 1800 – 1801 1802 1803
Napoleon crosses the Alps.
Year 1800 (MDCCC) was an exceptional common year starting on Wednesday of the Gregorian calendar, but a leap year starting on Sunday of the Julian calendar. The Gregorian calendar was 11 days ahead of the Julian calendar until Friday, February 28 [O.S. February 17, 1800] 1800, but 12 days ahead since Saturday, March 1 [O.S. February 18, 1800] 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
China:300-400,000,000
Europe: 203,000,000
Battle of Marengo
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).
Middlebury College is granted its charter by the Vermont General Assembly
November 17 – The U.S. Congress holds its first Washington, D.C. session.
December 24
An assault on Napoleon Bonaparte fails in Paris.
1800 in other calendars
Gregorian calendar 1800 MDCCC
Ab urbe condita 2553
Armenian calendar 1249 ԹՎ ՌՄԽԹ
Bahá'í calendar -44 – -43
Berber calendar 2750
Buddhist calendar 2344
Burmese calendar 1162
Chinese calendar 4436/4496-12-7 (己未年十二月初七日)
— to —
4437/4497-11-16 (庚申年十一月十六日)
Coptic calendar 1516 – 1517
Ethiopian calendar 1792 – 1793
Hebrew calendar 5560 – 5561
Hindu calendars
- Vikram Samvat 1855 – 1856
- Shaka Samvat 1722 – 1723
- Kali Yuga 4901 – 4902
Holocene calendar 11800
Iranian calendar 1178 – 1179
Islamic calendar 1214 – 1215
Japanese calendar Kansei 12 (寛政12年)
Korean calendar 4133
Thai solar calendar 2343
January 26
Johann Gerhard Oncken, German Baptist preacher (died 1884)
January 27 – John Evelyn Denison, 1st Viscount Ossington, English statesman (died 1875)
February 9
Hyrum Smith, American religious leader (died 1844)
Joseph von Führich, Austrian painter (died 1876)
February 11 – William Fox Talbot, English photographic pioneer (died 1877)
February 26
Lucius Lyon, U.S. statesman (died 1851)
John Baptist Purcell, U.S. (Irish-born) archbishop (died 1883)
March 2 – Evgeny Baratynsky, Russian poet (died 1844)
March 4 – William Price, British physician and eccentric (died 1893)
Victor Aimé Huber, German social reformer (died 1869)
George Hudson, English railway financier (died 1871)
March 12 – Louis Prosper Gachard, Belgian man of letters (died 1885)
March 25
Alexis Paulin Paris, French scholar and author (died 1881)
Ernst Heinrich Karl von Dechen, German geologist and mineralogist (died 1889)
March 28 – Johann Georg Wagler, German herpetologist (died 1832)
April 16
Jakob Heine, German orthopaedist (died 1879)
George Bingham, 3rd Earl of Lucan, British soldier (died 1888)
April 29 – Hiram Cronk, last surviving veteran of the War of 1812 (died 1905)
May 9
John Brown, American abolitionist (died 1859)
Samuel Carter Hall, English journalist (died 1889)
May 30 – Karl Wilhelm Feuerbach, German geometer (died 1827)
July 22
Jakob Lorber, German Christian mystic (died 1864)
Robert McCormick, British Royal Navy surgeon (died 1890)
July 31
Robert L. Caruthers, Confederate governor of Tennessee (died 1882)
Friedrich Wöhler, German chemist (died 1882)
August 4 – Hercules L. Dousman, American trader and financier (died 1868)
August 12
Jean-Jacques Ampère, French philologist (died 1864)
Ugo Bassi, Italian patriot (died 1849)
August 13 – Ippolito Rosellini, Italian Egyptologist (died 1843)
August 19
Buckner Stith Morris, mayor of Chicago (died 1879)
James Lenox, American bibliophile and philanthropist (died 1880)
August 21 – Hiram Walden, American politician (died 1880)
August 22
Edward Barron Chandler, American politician (died 1880)
Edward Bouverie Pusey, English churchman (died 1882)
August 25 – Karl Hase, German Protestant theologian and Church historian (died 1890)
September 12
Pierre Charles Fournier de Saint-Amant, leading French chess master (died 1872)
William Cavendish-Scott-Bentinck, 5th Duke of Portland (died 1879)
September 13
Franklin Buchanan, officer in the U.S. Navy who became an admiral in the Confederate Navy during the American Civil War (died 1874)
David Stewart, American politician (died 1858)
September 15 – Paul Friedrich, Grand Duke of Mecklenburg-Schwerin (died 1842)
September 20
John Pascoe Grenfell, British admiral of the Brazilian Navy (died 1869)
Benjamin Franklin White, American singing master (died 1879)
September 22
George Bentham, English botanist (died 1884)
Thomas Holloway, English pharmacist and philanthropist (died 1883)
September 23 – William Holmes McGuffey, American professor who created the McGuffey Readers (died 1873)
October 25
Thomas Babington Macaulay, 1st Baron Macaulay, British poet (died 1859)
Jacques Paul Migne, French priest, theologian, and publisher (died 1875)
October 26 – Helmuth von Moltke the Elder, German field marshal (died 1891)
November 4
Edwin Waller, American entrepreneur (died 1881)
George Long, English classical scholar (died 1879)
November 17 – Achille Fould, French financier and politician (died 1867)
December 4
Emil Aarestrup, Danish erotic poet (died 1856)
William Fenwick Williams, British military (died 1883)
December 5 – Thomas Ford, governor of Illinois (died 1850)
date unknown
Elias Boudinot, Cherokee who started and edited the tribe’s first newspaper (died 1839)
Jacob Westervelt, American shipbuilder and mayor of New York (died 1856)
probable
Richard Lawrence, attempted assassin of Andrew Jackson (died 1861)
January 6
William Jones, English divine (born 1726)
Friedrich Adolf Riedesel, German soldier (born 1738)
January 9 – Jean Étienne Championnet, French general (born 1762)
April 25
Ezekiel Cornell, Continental Congressman from Rhode Island (born 1732)
William Cowper, English poet (born 1731)
May 4 – Armand, duc d'Aiguillon (born 1750)
June 14
Louis Charles Antoine Desaix, French military leader (killed in battle) (born 1768)
Jean Baptiste Kléber, French general (assassinated) (born 1753)
June 20 – Abraham Gotthelf Kästner, German mathematician (born 1719)
date unknown
Jean-Baptiste Audebert, French artist and naturalist
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