1173

1173 in various calendars
Gregorian calendar	1173; MCLXXIII
Ab urbe condita	1926
Armenian calendar	622; ԹՎ ՈԻԲ
Assyrian calendar	5923
Balinese saka calendar	1094–1095
Bengali calendar	580
Berber calendar	2123
English Regnal year	19 Hen. 2 – 20 Hen. 2
Buddhist calendar	1717
Burmese calendar	535
Byzantine calendar	6681–6682
Chinese calendar	壬辰年 (Water Dragon); 3870 or 3663; — to —; 癸巳年 (Water Snake); 3871 or 3664
Coptic calendar	889–890
Discordian calendar	2339
Ethiopian calendar	1165–1166
Hebrew calendar	4933–4934
Hindu calendars
- Vikram Samvat	1229–1230
- Shaka Samvat	1094–1095
- Kali Yuga	4273–4274
Holocene calendar	11173
Igbo calendar	173–174
Iranian calendar	551–552
Islamic calendar	568–569
Japanese calendar	Jōan 3; (承安３年)
Javanese calendar	1080–1081
Julian calendar	1173; MCLXXIII
Korean calendar	3506
Minguo calendar	739 before ROC; 民前739年
Nanakshahi calendar	−295
Seleucid era	1484/1485 AG
Thai solar calendar	1715–1716
Tibetan calendar	阳水龙年; (male Water-Dragon); 1299 or 918 or 146; — to —; 阴水蛇年; (female Water-Snake); 1300 or 919 or 147

Millennium:	2nd millennium
Centuries:	11th century; 12th century ; 13th century;
Decades:	1150s; 1160s; 1170s ; 1180s; 1190s;
Years:	1170; 1171; 1172; 1173 ; 1174; 1175; 1176;

Year 1173 (MCLXXIII) was a common year starting on Monday (link will display the full calendar) of the Julian calendar.

Events

January 5 – Bolesław IV (the Curly), High Duke of Poland, dies after a 27-year reign. He is succeeded by his half-brother Mieszko III (the Old), and as duke of Sandomierz in Lesser Poland by Casimir II (the Just).
King Canute I (Knut Eriksson) extends his rule after the death of co-ruler Kol – which includes also Östergötland. He becomes the unopposed sole-ruler of Sweden. Canute is supported by Earl Birger Brosa.
Abu Yaqub Yusuf, caliph of the Almohad Caliphate, re-populates the western Andalusian city of Beja. But it is rapidly abandoned, a sign of the quick demographic weakening of the Muslims in the peninsula.^[1]

Spring – Henry the Young King withdraws to the French court, marking the beginning of the Revolt of 1173–74, in which former Queen Eleanor of Aquitaine and her sons rebel against her ex-husband King Henry II.
October 17 – Battle of Fornham: Rebel forces are defeated while fording the River Lark. Flemish mercenaries are driven into the nearby swamps by the English royalists under Lord Richard de Luci (or Lucy).^[2]

Summer – Saladin leads an expeditionary army against the Bedouin tribes in Oultrejordain to secure a route between Egypt and Syria. He raids the region at Kerak Castle.^[3]
Pro-Fatimid rising in Upper Egypt led by Kanz al-Dawla, governor of Aswan, is crushed by Saladin's brother Al-Adil.

The Qiandao era ends and the Chunxi era begins during the reign of Emperor Xiao Zong of the Song dynasty.

South India

Sinhalese king Parakramabahu the Great gains a decisive victory by invading the Chola Empire as an ally of the Pandyas, capturing Tondi and Pasi regions.

August 8 – The construction of a campanile, which will become the Leaning Tower of Pisa, begins.
Algebraic chess notation is first recorded.

King Béla III invites Cistercian and Premonstratensian monks to Hungary. They introduce advanced agricultural methods in the realm (approximate date).

February 21 – Thomas Becket is canonized by Pope Alexander III. His tomb in Canterbury Cathedral becomes a shrine and a popular pilgrimage destination.^[4]
Peter Waldo, French spiritual leader, is converted to Christianity and founds the Waldensians.
The Great Mosque of al-Nuri in Mosul is completed (approximate date).

^ Picard, Christophe (2000). Le Portugal musulman (VIIIe-XIIIe siècle): L'Occident d'al-Andalus sous domination islamique. Paris: Maisonneuve & Larose. p. 110. ISBN 2-7068-1398-9.
^ Beeler, John (1971). Warfare in Feudal Europe, 730–1200, pp 104–105. Ithaca, NY: Cornell University Press. ISBN 0-8014-9120-7.
^ David Nicolle (2011). Osprey: Command 12 - Saladin, p. 4. ISBN 978-1-84908-317-1.
^ Palmer, Alan; Palmer, Veronica (1992). The Chronology of British History. London: Century Ltd. pp. 69–72. ISBN 0-7126-5616-2.

Gregorian calendar	1173 MCLXXIII
Ab urbe condita	1926
Armenian calendar	622 ԹՎ ՈԻԲ
Assyrian calendar	5923
Balinese saka calendar	1094–1095
Bengali calendar	580
Berber calendar	2123
English Regnal year	19 Hen. 2 – 20 Hen. 2
Buddhist calendar	1717
Burmese calendar	535
Byzantine calendar	6681–6682
Chinese calendar	壬辰年 (Water Dragon) 3870 or 3663 — to — 癸巳年 (Water Snake) 3871 or 3664
Coptic calendar	889–890
Discordian calendar	2339
Ethiopian calendar	1165–1166
Hebrew calendar	4933–4934
Hindu calendars
- Vikram Samvat	1229–1230
- Shaka Samvat	1094–1095
- Kali Yuga	4273–4274
Holocene calendar	11173
Igbo calendar	173–174
Iranian calendar	551–552
Islamic calendar	568–569
Japanese calendar	Jōan 3 (承安３年)
Javanese calendar	1080–1081
Julian calendar	1173 MCLXXIII
Korean calendar	3506
Minguo calendar	739 before ROC 民前739年
Nanakshahi calendar	−295
Seleucid era	1484/1485 AG
Thai solar calendar	1715–1716
Tibetan calendar	阳水龙年 (male Water-Dragon) 1299 or 918 or 146 — to — 阴水蛇年 (female Water-Snake) 1300 or 919 or 147