1170

Year 1170 (MCLXX) was a common year starting on Thursday (link will display the full calendar) of the Julian calendar.

Millennium:	2nd millennium
Centuries:	11th century 12th century 13th century
Decades:	1150s 1160s 1170s 1180s 1190s
Years:	1167 1168 1169 1170 1171 1172 1173

1170 in various calendars

Gregorian calendar	1170 MCLXX
Ab urbe condita	1923
Armenian calendar	619 ԹՎ ՈԺԹ
Assyrian calendar	5920
Balinese saka calendar	1091–1092
Bengali calendar	577
Berber calendar	2120
English Regnal year	16 Hen. 2 – 17 Hen. 2
Buddhist calendar	1714
Burmese calendar	532
Byzantine calendar	6678–6679
Chinese calendar	己丑年 (Earth Ox) 3866 or 3806     — to — 庚寅年 (Metal Tiger) 3867 or 3807
Coptic calendar	886–887
Discordian calendar	2336
Ethiopian calendar	1162–1163
Hebrew calendar	4930–4931
Hindu calendars
- Vikram Samvat	1226–1227
- Shaka Samvat	1091–1092
- Kali Yuga	4270–4271
Holocene calendar	11170
Igbo calendar	170–171
Iranian calendar	548–549
Islamic calendar	565–566
Japanese calendar	Kaō 2 (嘉応２年)
Javanese calendar	1077–1078
Julian calendar	1170 MCLXX
Korean calendar	3503
Minguo calendar	742 before ROC 民前742年
Nanakshahi calendar	−298
Seleucid era	1481/1482 AG
Thai solar calendar	1712–1713
Tibetan calendar	阴土牛年 (female Earth-Ox) 1296 or 915 or 143     — to — 阳金虎年 (male Iron-Tiger) 1297 or 916 or 144

Events

• September 21 – Following a siege, combined Anglo-Norman and Irish forces seize the city of Dublin, forcing Ascall mac Ragnaill, King of Dublin, into exile.[1]
• November (or December) – Henry II of England, when word reaches him in France of Thomas Becket's latest actions, utters words that are interpreted by his followers as a wish for the archbishop's death.
• December 29 – Thomas Becket, Archbishop of Canterbury, is assassinated in Canterbury Cathedral.

Date unknown

• The Danes attack Estonia.
• The East Frisian island of Bant is broken up in a North Sea flood.
• Palace guards massacre the civil officials at the Korean court, and place a new king on the throne. The coup leaders abolish the privileges that have kept the aristocrats in power, and appoint themselves to senior posts.
• Earliest date for the making of Cheddar cheese.
• According to folklore, the Welsh prince Madoc sails to North America, in his ship the Gwennan Gorn, and founds a colony.
• Estimation: Fes in the Almohad Empire becomes the largest city of the world, taking the lead from Constantinople, capital of the Byzantine Empire.[2]

Births

• May 9 (or June 28) – Valdemar II of Denmark (d. 1241)
• August 8 – Saint Dominic, founder of the Dominicans (d. 1221)
• Eustace the Monk, French pirate (d. 1217)
• Isabella of Hainault, queen of Philip II of France (d. 1190)
• Muqali, general of Genghis Khan
• Agnes I, Countess of Nevers
• Approximate date – Fibonacci (Leonardo Pisano Bigollo), Pisan mathematician (d. 1240/50)

Deaths

Albert I of Brandenburg died on November 18, 1170

Thomas Becket assassinated on December 29, 1170

• January 22 – Wang Chongyang, Chinese Daoist, co-founder of the Quanzhen School (b. 1113)
• April 23 – Minamoto no Tametomo, Japanese samurai, first known person to die by seppuku (b. 1139)
• August 19 – Mstislav II of Kiev
• November 18 – Albert I of Brandenburg (b. c. 1100)
• November 23 or November 28 – Owain Gwynedd, King of Gwynedd (b. c. 1100)
• December 29 – Thomas Becket, Archbishop of Canterbury (assassinated) (b. c. 1118)
• Al-Mustanjid, Abbasid Caliph in Baghdad
• Ruben II, Prince of Armenia (b. 1160)
• Eliezer ben Nathan, Jewish poet, writer (b. 1090)
• Odo, Viscount of Porhoet, co-ruler of the duchy of Brittany

References

1. Foster, R. F. (1989). The Oxford Illustrated History of Ireland. Oxford University Press.
2. "Largest Cities Through History". About.com Geography.