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Millennium: 2nd millennium
1181 in various calendars
Gregorian calendar 1181
Ab urbe condita 1934
Armenian calendar 630
Assyrian calendar 5931
Balinese saka calendar 1102–1103
Bengali calendar 588
Berber calendar 2131
English Regnal year 27 Hen. 2 – 28 Hen. 2
Buddhist calendar 1725
Burmese calendar 543
Byzantine calendar 6689–6690
Chinese calendar 庚子(Metal Rat)
3877 or 3817
    — to —
辛丑年 (Metal Ox)
3878 or 3818
Coptic calendar 897–898
Discordian calendar 2347
Ethiopian calendar 1173–1174
Hebrew calendar 4941–4942
Hindu calendars
 - Vikram Samvat 1237–1238
 - Shaka Samvat 1102–1103
 - Kali Yuga 4281–4282
Holocene calendar 11181
Igbo calendar 181–182
Iranian calendar 559–560
Islamic calendar 576–577
Japanese calendar Jishō 5 / Yōwa 1
Javanese calendar 1088–1089
Julian calendar 1181
Korean calendar 3514
Minguo calendar 731 before ROC
Nanakshahi calendar −287
Seleucid era 1492/1493 AG
Thai solar calendar 1723–1724
Tibetan calendar 阳金鼠年
(male Iron-Rat)
1307 or 926 or 154
    — to —
(female Iron-Ox)
1308 or 927 or 155

Year 1181 (MCLXXXI) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar.




  • After a series of defeats, the Almohad navy, under the admiral Ahmad al-Siqilli, crushes the Portuguese fleet and reasserts its control over the Atlantic Ocean.[1]
  • The word Albigensians is first used by chronicler Geoffroy du Breuil of Vigeois, to describe the inhabitants of Albi, France.
  • Philip Augustus annuls all loans made by Jews to Christians, and takes a percentage for himself. A year later, he confiscates all Jewish property and expels the Jews from Paris.[2]

By topic[edit]


  • Chinese and Japanese astronomers observe what has since come to be understood as supernova SN 1181. One of only eight supernovae in the Milky Way observed in recorded history, it appears in the constellation Cassiopeia, and is visible in the night sky for about 185 days. The radio source 3C58 is thought to be the remnant from this event.
  • Guilhem VIII, lord of Montpellier in France, frees the teaching of medicine from any monopoly. (January[3]).





  1. ^ Picard, Christophe (1997). La mer et les musulmans d'Occident VIIIe-XIIIe siècle. Paris: Presses Universitaires de France. 
  2. ^ Baldwin, John (2006). Paris 1200. Paris: Aubier. p. 75. 
  3. ^ Mélanges d'histoire de la médecine hébraïque, by Gad Freudenthal, Samuel S. Kottek, Paul Fenton compiled by Gad Freudenthal, Samuel S. Kottek published by Brill, 2002 ISBN 90-04-12522-1, 9789004125223