1731

1731 (MDCCXXXI) was a common year starting on Monday in the Gregorian calendar and a common year starting on Friday in the Julian calendar.

1731 in other calendars

Gregorian calendar	1731 MDCCXXXI
Ab urbe condita	2484
Armenian calendar	1180 ԹՎ ՌՃՁ
Assyrian calendar	6481
Balinese saka calendar	1652–1653
Bengali calendar	1138
Berber calendar	2681
British Regnal year	4 Geo. 2 – 5 Geo. 2
Buddhist calendar	2275
Burmese calendar	1093
Byzantine calendar	7239–7240
Chinese calendar	庚戌年 (Metal Dog) 4427 or 4367     — to — 辛亥年 (Metal Pig) 4428 or 4368
Coptic calendar	1447–1448
Discordian calendar	2897
Ethiopian calendar	1723–1724
Hebrew calendar	5491–5492
Hindu calendars
- Vikram Samvat	1787–1788
- Shaka Samvat	1652–1653
- Kali Yuga	4831–4832
Holocene calendar	11731
Igbo calendar	731–732
Iranian calendar	1109–1110
Islamic calendar	1143–1144
Japanese calendar	Kyōhō 16 (享保１６年)
Javanese calendar	1655–1656
Julian calendar	Gregorian minus 11 days
Korean calendar	4064
Minguo calendar	181 before ROC 民前181年
Nanakshahi calendar	263
Thai solar calendar	2273–2274
Tibetan calendar	ལྕགས་ཕོ་ཁྱི་ལོ་ (male Iron-Dog) 1857 or 1476 or 704     — to — ལྕགས་མོ་ཕག་ལོ་ (female Iron-Boar) 1858 or 1477 or 705

Events

• Benjamin Franklin starts the Library Company of Philadelphia.