1723 (MDCCXXIII) was a common year starting on Friday of the Gregorian calendar and a common year starting on Tuesday of the Julian calendar, the 1723rd year of the Common Era (CE) and Anno Domini (AD) designations, the 723rd year of the 2nd millennium, the 23rd year of the 18th century, and the 4th year of the 1720s decade. As of the start of 1723, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.

Millennium: 2nd millennium
Centuries: 17th century18th century19th century
Decades: 1690s  1700s  1710s  – 1720s –  1730s  1740s  1750s
Years: 1720 1721 172217231724 1725 1726
1723 in other calendars
Gregorian calendar1723
MDCCXXIII
Ab urbe condita2476
Armenian calendar1172
ԹՎ ՌՃՀԲ
Assyrian calendar6473
Balinese saka calendar1644–1645
Bengali calendar1130
Berber calendar2673
British Regnal yearGeo. 1 – 10 Geo. 1
Buddhist calendar2267
Burmese calendar1085
Byzantine calendar7231–7232
Chinese calendar壬寅(Water Tiger)
4419 or 4359
    — to —
癸卯年 (Water Rabbit)
4420 or 4360
Coptic calendar1439–1440
Discordian calendar2889
Ethiopian calendar1715–1716
Hebrew calendar5483–5484
Hindu calendars
 - Vikram Samvat1779–1780
 - Shaka Samvat1644–1645
 - Kali Yuga4823–4824
Holocene calendar11723
Igbo calendar723–724
Iranian calendar1101–1102
Islamic calendar1135–1136
Japanese calendarKyōhō 8
(享保8年)
Javanese calendar1647–1648
Julian calendarGregorian minus 11 days
Korean calendar4056
Minguo calendar189 before ROC
民前189年
Nanakshahi calendar255
Thai solar calendar2265–2266
Tibetan calendar阳水虎年
(male Water-Tiger)
1849 or 1468 or 696
    — to —
阴水兔年
(female Water-Rabbit)
1850 or 1469 or 697

Births

change
 
Adam Smith

Deaths

change
 
Christopher Wren
 
Antonie van Leeuwenhoek