1850

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.

1850 in other calendars

Gregorian calendar	1850 MDCCCL
Ab urbe condita	2603
Armenian calendar	1299 ԹՎ ՌՄՂԹ
Assyrian calendar	6600
Bahá'í calendar	6–7
Balinese saka calendar	1771–1772
Bengali calendar	1257
Berber calendar	2800
British Regnal year	13 Vict. 1 – 14 Vict. 1
Buddhist calendar	2394
Burmese calendar	1212
Byzantine calendar	7358–7359
Chinese calendar	己酉年 (Earth Rooster) 4546 or 4486     — to — 庚戌年 (Metal Dog) 4547 or 4487
Coptic calendar	1566–1567
Discordian calendar	3016
Ethiopian calendar	1842–1843
Hebrew calendar	5610–5611
Hindu calendars
- Vikram Samvat	1906–1907
- Shaka Samvat	1771–1772
- Kali Yuga	4950–4951
Holocene calendar	11850
Igbo calendar	850–851
Iranian calendar	1228–1229
Islamic calendar	1266–1267
Japanese calendar	Kaei 3 (嘉永３年)
Javanese calendar	1778–1779
Julian calendar	Gregorian minus 12 days
Korean calendar	4183
Minguo calendar	62 before ROC 民前62年
Nanakshahi calendar	382
Thai solar calendar	2392–2393
Tibetan calendar	ས་མོ་བྱ་ལོ་ (female Earth-Bird) 1976 or 1595 or 823     — to — ལྕགས་ཕོ་ཁྱི་ལོ་ (male Iron-Dog) 1977 or 1596 or 824

Events

• The speed of light in water was observed to be slower than that in air.

Books

• The Scarlet Letter by Nathaniel Hawthorne

Births

• January 21 – Paul Vinzenz Busch, ringmaster (d. 1927)
• January 27 – Samuel Gompers, English-born labor leader (d. 1924)
• January 27 – Edward J. Smith, Captain of the Titanic (d. 1912)
• May 1 – Prince Arthur of the United Kingdom (d. 1942)
• May 8 – Ross Barnes, baseball player (d. 1915)
• May 12 – Henry Cabot Lodge, U.S. statesman (d. 1924)
• May 21 – Giuseppe Mercalli, Italian volcanologist (d. 1914)
• July 12 – Otto Schoetensack, German anthropologist (d. 1912)
• September 2 – Albert Spalding, baseball player and sporting goods manufacturer (d. 1915)
• November 13 – Robert Louis Stevenson, Scottish writer (d. 1894)
• December 9 – Emma Abbott, American opera singer (d. 1891)
• December 21 – Zdenek Fibich, Czech composer (d. 1900)

Deaths

• July 2 – Robert Peel
• July 9 - Zachary Taylor, 65, twelfth President of the United States, cholera (b. 1784)