1181 (MCLXXXI) was a common year starting on Thursday of the Julian calendar, the 1181st year of the Common Era (CE) and Anno Domini (AD) designations, the 181st year of the 2nd millennium, the 81st year of the 12th century, and the 2nd year of the 1180s decade. As of the start of 1181, the Gregorian calendar was 7 days ahead of the Julian calendar, which was the dominant calendar of the time.

Millennium: 2nd millennium
Centuries: 11th century12th century13th century
Decades: 1150s  1160s  1170s  – 1180s –  1190s  1200s  1210s
Years: 1178 1179 118011811182 1183 1184
1181 in other calendars
Gregorian calendar1181
MCLXXXI
Ab urbe condita1934
Armenian calendar630
ԹՎ ՈԼ
Assyrian calendar5931
Balinese saka calendar1102–1103
Bengali calendar588
Berber calendar2131
English Regnal year27 Hen. 2 – 28 Hen. 2
Buddhist calendar1725
Burmese calendar543
Byzantine calendar6689–6690
Chinese calendar庚子(Metal Rat)
3877 or 3817
    — to —
辛丑年 (Metal Ox)
3878 or 3818
Coptic calendar897–898
Discordian calendar2347
Ethiopian calendar1173–1174
Hebrew calendar4941–4942
Hindu calendars
 - Vikram Samvat1237–1238
 - Shaka Samvat1102–1103
 - Kali Yuga4281–4282
Holocene calendar11181
Igbo calendar181–182
Iranian calendar559–560
Islamic calendar576–577
Japanese calendarJishō 5 / Yōwa 1
(養和元年)
Javanese calendar1088–1089
Julian calendar1181
MCLXXXI
Korean calendar3514
Minguo calendar731 before ROC
民前731年
Nanakshahi calendar−287
Seleucid era1492/1493 AG
Thai solar calendar1723–1724
Tibetan calendar阳金鼠年
(male Iron-Rat)
1307 or 926 or 154
    — to —
阴金牛年
(female Iron-Ox)
1308 or 927 or 155

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