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Millennium: 2nd millennium
1721 in various calendars
Gregorian calendar 1721
Ab urbe condita 2474
Armenian calendar 1170
Assyrian calendar 6471
Balinese saka calendar 1642–1643
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 1642–1643
 - Kali Yuga 4821–4822
Holocene calendar 11721
Igbo calendar 721–722
Iranian calendar 1099–1100
Islamic calendar 1133–1134
Japanese calendar Kyōhō 6
Javanese calendar 1645–1646
Julian calendar Gregorian minus 11 days
Korean calendar 4054
Minguo calendar 191 before ROC
Nanakshahi calendar 253
Thai solar calendar 2263–2264
Tibetan calendar 阳金鼠年
(male Iron-Rat)
1847 or 1466 or 694
    — to —
(female Iron-Ox)
1848 or 1467 or 695

1721 (MDCCXXI) was a common year starting on Wednesday of the Gregorian calendar and a common year starting on Sunday 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. As of the start of 1721, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.


By place


  • The Kelantan Sultanate is established at Kelantan Darul Naim (now known as Kelantan Darul Naim, Malaysia).



Date unknown




  1. ^ Breverton, Terry (2004). Black Bart Roberts: The Greatest Pirate of Them All. Gretna, LA: Pelican Publishing. p. 57. ISBN 1-58980-233-0.
  2. ^ "Sir Robert Walpole". 10. HM Government. Archived from the original on November 1, 2011. Retrieved November 16, 2011.
  3. ^ Clear, Todd R.; Cole, George F.; Resig, Michael D. (2006). American Corrections (7th ed.). Thompson.
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