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1781 in various calendars
1781
MDCCLXXXI
2534
1230
ԹՎ ՌՄԼ
6531
1702–1703
1188
2731
2325
1143
7289–7290
庚子年 (Metal Rat)
4478 or 4271
— to —
辛丑年 (Metal Ox)
4479 or 4272
1497–1498
2947
1773–1774
5541–5542
1837–1838
1702–1703
4881–4882
11781
781–782
1159–1160
1195–1196
1706–1707
Gregorian minus 11 days
4114
131 before ROC
民前131年
313
2323–2324
阳金鼠年
(male Iron-Rat)
1907 or 1526 or 754
— to —
阴金牛年
(female Iron-Ox)
1908 or 1527 or 755
1781 (MDCCLXXXI) was a common year starting on Monday of the Gregorian calendar and a common year starting on Friday of the Julian calendar, the 1781st year of the Common Era (CE) and Anno Domini (AD) designations, the 781st year of the 2nd millennium, the 81st year of the 18th century, and the 2nd year of the 1780s decade. As of the start of 1781, the Gregorian calendar was 11 days ahead of the Julian calendar, which remained in localized use until 1923.