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Millennium: 2nd millennium
1823 in various calendars
Gregorian calendar 1823
Ab urbe condita 2576
Armenian calendar 1272
Assyrian calendar 6573
Balinese saka calendar 1744–1745
Bengali calendar 1230
Berber calendar 2773
British Regnal year 3  Geo. 4   4  Geo. 4
Buddhist calendar 2367
Burmese calendar 1185
Byzantine calendar 7331–7332
Chinese calendar 壬午(Water  Horse)
4519 or 4459
癸未年 (Water  Goat)
4520 or 4460
Coptic calendar 1539–1540
Discordian calendar 2989
Ethiopian calendar 1815–1816
Hebrew calendar 5583–5584
Hindu calendars
 - Vikram Samvat 1879–1880
 - Shaka Samvat 1744–1745
 - Kali Yuga 4923–4924
Holocene calendar 11823
Igbo calendar 823–824
Iranian calendar 1201–1202
Islamic calendar 1238–1239
Japanese calendar Bunsei 6
Javanese calendar 1750–1751
Julian calendar Gregorian minus 12 days
Korean calendar 4156
Minguo calendar 89 before ROC
Nanakshahi calendar 355
Thai solar calendar 2365–2366
Tibetan calendar 阳水马年
(male Water-Horse)
1949 or 1568 or 796
(female Water-Goat)
1950 or 1569 or 797
August 18: Demerara rebellion begins. Plate 2 Retreat of Lt Brady.jpg
August 18: Demerara rebellion begins.

1823 ( MDCCCXXIII ) was a common year starting on Wednesday of the Gregorian calendar  and a common year starting on Monday of the Julian calendar , the 1823rd year of the Common Era (CE) and Anno Domini (AD) designations, the 823rd year of the 2nd millennium , the 23rd year of the 19th century , and the 4th year of the 1820s decade. As of the start of 1823, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.








Date unknown



Carl Wilhelm Siemens Wilhelm Siemens.jpg
Carl Wilhelm Siemens
Abdülmecid I Sultan Abdülmecid - Google Art Project.jpg
Abdülmecid I


Max Müller Max Muller.jpg
Max Müller
Mackenzie Bowell SirMackenzieBowell.jpg
Mackenzie Bowell

Date Unknown



Edward Jenner Edward Jenner. Oil painting. Wellcome V0023503.jpg
Edward Jenner


Giovanni Battista Belzoni Belzoni1.jpg
Giovanni Battista Belzoni


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