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Millennium: 2nd millennium
Centuries: 17th century18th century19th century
Decades: 1690s  1700s  1710s  – 1720s –  1730s  1740s  1750s
Years: 1717 1718 171917201721 1722 1723
1720 by topic:
Arts and Sciences
ArchaeologyArchitectureArtLiterature (Poetry) – MusicScience
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Establishments and disestablishments categories
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1720 in other calendars
Gregorian calendar 1720
Ab urbe condita 2473
Armenian calendar 1169
Assyrian calendar 6470
Bengali calendar 1127
Berber calendar 2670
British Regnal year Geo. 1 – 7 Geo. 1
Buddhist calendar 2264
Burmese calendar 1082
Byzantine calendar 7228–7229
Chinese calendar 己亥(Earth Pig)
4416 or 4356
    — to —
庚子年 (Metal Rat)
4417 or 4357
Coptic calendar 1436–1437
Discordian calendar 2886
Ethiopian calendar 1712–1713
Hebrew calendar 5480–5481
Hindu calendars
 - Vikram Samvat 1776–1777
 - Shaka Samvat 1642–1643
 - Kali Yuga 4821–4822
Holocene calendar 11720
Igbo calendar 720–721
Iranian calendar 1098–1099
Islamic calendar 1132–1133
Japanese calendar Kyōhō 5
Julian calendar Gregorian minus 11 days
Korean calendar 4053
Minguo calendar 192 before ROC
Thai solar calendar 2262–2263

1720 (MDCCXX) was a leap year starting on Monday (dominical letter GF) of the Gregorian calendar and a leap year starting on Friday (dominical letter CB) of the Julian calendar, the 1720th year of the Common Era (CE) and Anno Domini (AD) designations, the 720th year of the 2nd millennium, the 20th year of the 18th century, and the 1st year of the 1720s decade. Note that the Julian day for 1720 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.




  • July 12 – The Lords Justice in Great Britain attempt to curb some of the excesses of the stock markets during the "South Sea Bubble". They dissolve a number of petitions for patents and charters, and abolish more than 80 joint-stock companies of dubious merit, but this has little effect on the creation of "Bubbles", ephemeral joint-stock companies created during the hysteria of the times.[2]
  • September – "South Sea Bubble": The English stock market crashes with dropping prices for stock in the South Sea Company.
  • November 16 – Pirate "Calico Jack" Rackham is brought to trial at Spanish Town in Jamaica; he is hanged at Port Royal two days later.

Date unknown




  1. Williams, Hywel (2005). Cassell's Chronology of World History. London: Weidenfeld & Nicolson. pp. 297–298. ISBN 0-304-35730-8.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>
  2. MacKay, Charles (2003). Extraordinary Popular Delusions and the Madness of Crowds. Harriman House Classics.<templatestyles src="Module:Citation/CS1/styles.css"></templatestyles>