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Millennium: 2nd millennium
1804 in various calendars
Gregorian calendar 1804
French Republican calendar 12–13
Ab urbe condita 2557
Armenian calendar 1253
Assyrian calendar 6554
Balinese saka calendar 1725–1726
Bengali calendar 1211
Berber calendar 2754
British Regnal year 44  Geo. 3   45  Geo. 3
Buddhist calendar 2348
Burmese calendar 1166
Byzantine calendar 7312–7313
Chinese calendar 癸亥(Water  Pig)
4500 or 4440
甲子年 (Wood  Rat)
4501 or 4441
Coptic calendar 1520–1521
Discordian calendar 2970
Ethiopian calendar 1796–1797
Hebrew calendar 5564–5565
Hindu calendars
 - Vikram Samvat 1860–1861
 - Shaka Samvat 1725–1726
 - Kali Yuga 4904–4905
Holocene calendar 11804
Igbo calendar 804–805
Iranian calendar 1182–1183
Islamic calendar 1218–1219
Japanese calendar Kyōwa 3 / Bunka 1
Javanese calendar 1730–1731
Julian calendar Gregorian minus 12 days
Korean calendar 4137
Minguo calendar 108 before ROC
Nanakshahi calendar 336
Thai solar calendar 2346–2347
Tibetan calendar 阴水猪年
(female Water-Pig)
1930 or 1549 or 777
(male Wood-Rat)
1931 or 1550 or 778
July 11: Burr shoots Hamilton.

1804 ( MDCCCIV ) was a leap year starting on Sunday of the Gregorian calendar  and a leap year starting on Friday of the Julian calendar , the 1804th year of the Common Era (CE) and Anno Domini (AD) designations, the 804th year of the 2nd millennium , the 4th year of the 19th century , and the 5th year of the 1800s decade. As of the start of 1804, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.







December 2: The Coronation of Napoleon

Date unknown



Eliza R. Snow


Ludwig Feuerbach
Jane Irwin Harrison
Carl Gustav Jacob Jacobi
Mercedes Marín del Solar

Date Unknown



Charlotte Lennox
Joseph Priestley
Immanuel Kant



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