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Millennium: 2nd millennium
Centuries: 17th century18th century19th century
Decades: 1690s  1700s  1710s  – 1720s –  1730s  1740s  1750s
Years: 1718 1719 172017211722 1723 1724
1721 by topic:
Arts and Sciences
ArchaeologyArchitectureArtLiterature (Poetry) – MusicScience
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Lists of leaders
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Birth and death categories
Establishments and disestablishments categories
Works category
1721 in other calendars
Gregorian calendar 1721
Ab urbe condita 2474
Armenian calendar 1170
Assyrian calendar 6471
Bengali calendar 1128
Berber calendar 2671
British Regnal year Geo. 1 – 8 Geo. 1
Buddhist calendar 2265
Burmese calendar 1083
Byzantine calendar 7229–7230
Chinese calendar 庚子(Metal Rat)
4417 or 4357
    — to —
辛丑年 (Metal Ox)
4418 or 4358
Coptic calendar 1437–1438
Discordian calendar 2887
Ethiopian calendar 1713–1714
Hebrew calendar 5481–5482
Hindu calendars
 - Vikram Samvat 1777–1778
 - Shaka Samvat 1643–1644
 - Kali Yuga 4822–4823
Holocene calendar 11721
Igbo calendar 721–722
Iranian calendar 1099–1100
Islamic calendar 1133–1134
Japanese calendar Kyōhō 6
Julian calendar Gregorian minus 11 days
Korean calendar 4054
Minguo calendar 191 before ROC
Thai solar calendar 2263–2264

1721 (MDCCXXI) was a common year starting on Wednesday (dominical letter E) of the Gregorian calendar and a common year starting on Sunday (dominical letter A) of the Julian calendar, the 1721st year of the Common Era (CE) and Anno Domini (AD) designations, the 721st year of the 2nd millennium, the 21st year of the 18th century, and the 2nd year of the 1720s decade. Note that the Julian day for 1721 is 11 calendar days difference, which continued to be used from 1582 until the complete conversion of the Gregorian calendar was entirely done in 1929.




Date unknown




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