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From Wikipedia, the free encyclopedia

1800 in various calendars
Gregorian calendar1800
French Republican calendar8–9
Ab urbe condita2553
Armenian calendar1249
Assyrian calendar6550
Balinese saka calendar1721–1722
Bengali calendar1207
Berber calendar2750
British Regnal year40 Geo. 3 – 41 Geo. 3
Buddhist calendar2344
Burmese calendar1162
Byzantine calendar7308–7309
Chinese calendar己未(Earth Goat)
4496 or 4436
    — to —
庚申年 (Metal Monkey)
4497 or 4437
Coptic calendar1516–1517
Discordian calendar2966
Ethiopian calendar1792–1793
Hebrew calendar5560–5561
Hindu calendars
 - Vikram Samvat1856–1857
 - Shaka Samvat1721–1722
 - Kali Yuga4900–4901
Holocene calendar11800
Igbo calendar800–801
Iranian calendar1178–1179
Islamic calendar1214–1215
Japanese calendarKansei 12
Javanese calendar1726–1727
Julian calendarGregorian minus 11 or 12 days
Korean calendar4133
Minguo calendar112 before ROC
Nanakshahi calendar332
Thai solar calendar2342–2343
Tibetan calendar阴土羊年
(female Earth-Goat)
1926 or 1545 or 773
    — to —
(male Iron-Monkey)
1927 or 1546 or 774
May 15: Napoleon begins crossing the Alps.
May 15: Napoleon begins crossing the Alps.

1800 (MDCCC) was an exceptional common year starting on Wednesday of the Gregorian calendar and a leap year starting on Sunday of the Julian calendar, the 1800th year of the Common Era (CE) and Anno Domini (AD) designations, the 800th year of the 2nd millennium, the 100th and last year of the 18th century, and the 1st year of the 1800s decade. As of the start of 1800, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.

As of March 1 (O.S. February 18), when the Julian calendar acknowledged a leap day and the Gregorian calendar did not, the Julian calendar fell one day further behind, bringing the difference to 12 days until February 28 (O.S. February 16), 1900.


  • World population approaches the 1 billion milestone which it will attain in 1802. The population distribution by region:
    • Africa: 107,000,000
    • Asia: 635,000,000
    • China: 300–400,000,000[1]
    • Europe: 203,000,000
    • Latin America: 24,000,000
    • Northern America: 7,000,000
    • Oceania: 2,000,000








Approximate date




Date unknown


  1. ^ Roberts, J. M. (1994). History of the World. Penguin.
  2. ^ Everett, Jason M., ed. (2006). "1800". The People's Chronology. Thomson Gale.
  3. ^ Burton, Reginald George (2010). Napoleon's Campaigns in Italy 1796–1797 & 1800. p. 107. ISBN 978-0-85706-356-4.
  4. ^ Burton, Reginald George (2010). Napoleon's Campaigns in Italy 1796–1797 & 1800. p. 115. ISBN 978-0-85706-356-4.
  5. ^ "1800: President John Adams moves into a tavern in Washington, D.C." This Day in History. Archived from the original on April 1, 2015.
  6. ^ Burton, Reginald George (2010). Napoleon's Campaigns in Italy 1796–1797 & 1800. p. 121. ISBN 978-0-85706-356-4.
  7. ^ "Act of Union 1707". 2007. Archived from the original on October 15, 2008. Retrieved August 10, 2012.
  8. ^ Act of Union 1707.
  9. ^ "Act of Union Timeline". Act of Union Virtual Library. Archived from the original on December 12, 2004. Retrieved April 24, 2013.
  10. ^ Ranelagh, John O'Beirne (2012). A Short History of Ireland. Cambridge University Press. p. 102.
  11. ^ Nicholls, Michael L. (2012). Whispers of Rebellion: Narrating Gabriel's Conspiracy. University of Virginia Press.
  12. ^ "France - Convention of 1800: Text of the Treaty". The Avalon Project. Yale Law School. Archived from the original on October 1, 2009. Retrieved October 27, 2009.
This page was last edited on 25 September 2020, at 16:15
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