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Millennium: 2nd millennium
1781 in various calendars
Gregorian calendar1781
Ab urbe condita2534
Armenian calendar1230
Assyrian calendar6531
Balinese saka calendar1702–1703
Bengali calendar1188
Berber calendar2731
British Regnal year21 Geo. 3 – 22 Geo. 3
Buddhist calendar2325
Burmese calendar1143
Byzantine calendar7289–7290
Chinese calendar庚子(Metal Rat)
4477 or 4417
    — to —
辛丑年 (Metal Ox)
4478 or 4418
Coptic calendar1497–1498
Discordian calendar2947
Ethiopian calendar1773–1774
Hebrew calendar5541–5542
Hindu calendars
 - Vikram Samvat1837–1838
 - Shaka Samvat1702–1703
 - Kali Yuga4881–4882
Holocene calendar11781
Igbo calendar781–782
Iranian calendar1159–1160
Islamic calendar1195–1196
Japanese calendarAn'ei 10 / Tenmei 1
Javanese calendar1706–1707
Julian calendarGregorian minus 11 days
Korean calendar4114
Minguo calendar131 before ROC
Nanakshahi calendar313
Thai solar calendar2323–2324
Tibetan calendar阳金鼠年
(male Iron-Rat)
1907 or 1526 or 754
    — to —
(female Iron-Ox)
1908 or 1527 or 755
March 13: Uranus is discovered.

1781 (MDCCLXXXI) was a common year starting on Monday of the Gregorian calendar and a common year starting on Friday of the Julian calendar, the 1781st year of the Common Era (CE) and Anno Domini (AD) designations, the 781st year of the 2nd millennium, the 81st year of the 18th century, and the 2nd year of the 1780s decade. As of the start of 1781, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.






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  1. Williams, Hywel (2005). Cassell's Chronology of World History. London: Weidenfeld & Nicolson. pp. 333–334. ISBN 0-304-35730-8.
  2. Penguin Pocket On This Day. Penguin Reference Library. 2006. ISBN 0-14-102715-0.
  3. "The Rebellion of Tupac-Amaru II", in The Hispanic American Historical Review (February 1919) p20
  4. William J. Bennett and John T.E. Cribb, The American Patriot's Almanac: Daily Readings on America (Thomas Nelson, Inc. 2013) p125
  5. "John Paul Jones and Our First Triumphs on the Sea", in The American Monthly Review of Reviews" (July 1905) p42
  6. Albert Bushnell Hart, ed., American History Told by Contemporaries (Macmillan, 1908) p600
  7. Michael Lee Lannin, African Americans in the Revolutionary War (Citadel Press, 2005) p86
  8. "BBC History British History Timeline". Archived from the original on September 9, 2007. Retrieved September 3, 2007.
  9. "History & Facts". Washington & Jefferson College. Archived from the original on July 8, 2011. Retrieved September 10, 2010.

Further reading

  • John Blair; J. Willoughby Rosse (1856). "1781". Blair's Chronological Tables. London: H.G. Bohn – via Hathi Trust. Unknown parameter |chapterurl= ignored (help)