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Millennium: 2nd millennium
1812 in various calendars
Gregorian calendar 1812
Ab urbe condita 2565
Armenian calendar 1261
Assyrian calendar 6562
Balinese saka calendar 1733–1734
Bengali calendar 1219
Berber calendar 2762
British Regnal year 52  Geo. 3   53  Geo. 3
Buddhist calendar 2356
Burmese calendar 1174
Byzantine calendar 7320–7321
Chinese calendar 辛未(Metal  Goat)
4508 or 4448
壬申年 (Water  Monkey)
4509 or 4449
Coptic calendar 1528–1529
Discordian calendar 2978
Ethiopian calendar 1804–1805
Hebrew calendar 5572–5573
Hindu calendars
 - Vikram Samvat 1868–1869
 - Shaka Samvat 1733–1734
 - Kali Yuga 4912–4913
Holocene calendar 11812
Igbo calendar 812–813
Iranian calendar 1190–1191
Islamic calendar 1226–1227
Japanese calendar Bunka 9
Javanese calendar 1738–1739
Julian calendar Gregorian minus 12 days
Korean calendar 4145
Minguo calendar 100 before ROC
Nanakshahi calendar 344
Thai solar calendar 2354–2355
Tibetan calendar 阴金羊年
(female Iron-Goat)
1938 or 1557 or 785
(male Water-Monkey)
1939 or 1558 or 786
March 16 – April 6: Siege of Badajoz Siege of Badajoz, by Richard Caton Woodville Jr.jpg
March 16 April 6: Siege of Badajoz

1812 ( MDCCCXII ) was a leap year starting on Wednesday of the Gregorian calendar  and a leap year starting on Monday of the Julian calendar , the 1812th year of the Common Era (CE) and Anno Domini (AD) designations, the 812th year of the 2nd millennium , the 12th year of the 19th century , and the 3rd year of the 1810s decade. As of the start of 1812, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.







Date unknown


Charles Dickens Dickens Gurney head.jpg
Charles Dickens
Henry Wilson Henry Wilson, VP of the United States.jpg
Henry Wilson
Fernando Wood Fernando Wood - Brady-Handy.jpg
Fernando Wood
Louisa Hamilton, Duchess of Abercorn The Duchess of Abercorn and Child by Sir Edwin Henry Landseer (1802-1873).jpg
Louisa Hamilton, Duchess of Abercorn

Date unknown


Spencer Perceval Spencer Perceval.JPG
Spencer Perceval
Mayer Amschel Rothschild Mayer Amschel Rothschild.jpg
Mayer Amschel Rothschild


  1. Helsinki 200: 8 April 1812 Emperor Alexander I promotes Helsinki to the capital of the Grand Duchy.
  2. "Fires, Great", in The Insurance Cyclopeadia: Being an Historical Treasury of Events and Circumstances Connected with the Origin and Progress of Insurance, Cornelius Walford, ed. (C. and E. Layton, 1876) pp67
  3. (Gilbert Hillis, 1844; reprinted by Heritage Books, 1990) p434
  4. "Life in the Desert, or, Recollections of Travel in Asia and Africa". World Digital Library . 1860. Retrieved 2013-09-23.

Further reading