King Philip II (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.
After a series of defeats, the Almohad fleet under the admiral Ahmad al-Siqilli, crushes the Portuguese navy and reasserts its control over the Atlantic Ocean.
Summer –Raynald of Châtillon, lord of Oultrejordain, raids Saladin's territory, reaching as far as Tabuk (modern Saudi Arabia) on the route between Damascus and Mecca. In November, Saladin sends an expedition under his nephew, Farrukh Shah, who invades Oultrejordain. Raynald of Châtillon is forced to withdraw home. Saladin complains to King Baldwin IV of Jerusalem (the Leper) for breaking the treaty (see 1180) and demands compensation.
Asia
March 20–Taira no Kiyomori, Japanese military leader and dictator, dies at Kyoto. He established the first samurai-dominated administrative government in Japan.
Chinese and Japanese astronomers observe what has come to be understood as supernovaSN 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 was thought to be the remnant from this event, but opinion is shifting towards the recently discovered nebula Pa 30 (ref: Arxiv 2105.12384).
↑Baldwin, John (2006). Paris 1200. Paris: Aubier. p.75.
↑Bradbury, Jim. (1997). Philip Augustus: King of France 1180–1223, p. 245. The Medieval World (1st ed.). Routledge. ISBN978-0-582-06059-3.
↑Williams, Hywel (2005). Cassell's Chronology of World History, p. 128. ISBN0-304-35730-8.
↑Stephenson, Paul (2000). Byzantium's Balkan Frontier: A Political Study of the Northern Balkans, 900–1204, p. 281. Cambridge University Press. ISBN978-0-521-02756-4.
↑Picard, Christophe (1997). La mer et les musulmans d'Occident VIIIe-XIIIe siècle. Paris: Presses Universitaires de France.
↑Steven Runciman (1952). A History of The Crusades. Vol II: Kingdom of Jerusalem, p. 351. ISBN978-0241-29876-3.
↑Makk, Ferenc (1994). "Lukács". In Kristó, Gyula; Engel, Pál; Makk, Ferenc (eds.). Korai magyar történeti lexikon (9–14. század) [Encyclopedia of the Early Hungarian History (9th–14th centuries)] (in Hungarian). Akadémiai Kiadó. pp.417–420. ISBN963-05-6722-9.