1850

Millennium: 2nd millennium
Centuries:
Decades:
Years:
1850 in various calendars
Gregorian calendar1850
MDCCCL
Ab urbe condita2603
Armenian calendar1299
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Assyrian calendar6600
Baháʼí calendar6–7
Balinese saka calendar1771–1772
Bengali calendar1257
Berber calendar2800
British Regnal year13 Vict. 1 – 14 Vict. 1
Buddhist calendar2394
Burmese calendar1212
Byzantine calendar7358–7359
Chinese calendar己酉年 (Earth Rooster)
4547 or 4340
    — to —
庚戌年 (Metal Dog)
4548 or 4341
Coptic calendar1566–1567
Discordian calendar3016
Ethiopian calendar1842–1843
Hebrew calendar5610–5611
Hindu calendars
 - Vikram Samvat1906–1907
 - Shaka Samvat1771–1772
 - Kali Yuga4950–4951
Holocene calendar11850
Igbo calendar850–851
Iranian calendar1228–1229
Islamic calendar1266–1267
Japanese calendarKaei 3
(嘉永3年)
Javanese calendar1778–1779
Julian calendarGregorian minus 12 days
Korean calendar4183
Minguo calendar62 before ROC
民前62年
Nanakshahi calendar382
Thai solar calendar2392–2393
Tibetan calendar阴土鸡年
(female Earth-Rooster)
1976 or 1595 or 823
    — to —
阳金狗年
(male Iron-Dog)
1977 or 1596 or 824
The Royal Commission for the Great Exhibition is established in the U.K.

1850 (MDCCCL) was a common year starting on Tuesday of the Gregorian calendar and a common year starting on Sunday of the Julian calendar, the 1850th year of the Common Era (CE) and Anno Domini (AD) designations, the 850th year of the 2nd millennium, the 50th year of the 19th century, and the 1st year of the 1850s decade. As of the start of 1850, the Gregorian calendar was 12 days ahead of the Julian calendar, which remained in localized use until 1923.