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This article is about the year 1080. For other uses, see 1080 (disambiguation).
|Centuries:||10th century – 11th century – 12th century|
|Decades:||1050s 1060s 1070s – 1080s – 1090s 1100s 1110s|
|Years:||1077 1078 1079 – 1080 – 1081 1082 1083|
|1080 by topic|
|Lists of leaders|
|Birth and death categories|
|Births – Deaths|
|Establishments and disestablishments categories|
|Establishments – Disestablishments|
|Ab urbe condita||1833|
|Bahá'í calendar||−764 – −763|
|English Regnal year||14 Will. 1 – 15 Will. 1|
|Chinese calendar||己未年 (Earth Goat)
3776 or 3716
— to —
庚申年 (Metal Monkey)
3777 or 3717
|- Vikram Samvat||1136–1137|
|- Shaka Samvat||1002–1003|
|- Kali Yuga||4181–4182|
|Japanese calendar||Jōryaku 4
|Minguo calendar||832 before ROC
|Thai solar calendar||1623|
|Wikimedia Commons has media related to 1080.|
- April 17 – Canute IV succeeds as King of Denmark on the death of his brother Harald III.
- May 14 – William Walcher, Bishop of Durham, is killed by rebel Northumbrians; King William I of England sends his half-brother Odo of Bayeux to pacify Northumbria.
- July 5 – Ísleifur Gissurarson, the first bishop in Iceland, dies while giving mass in Skálholt church.
- Autumn – King William I of England's son Robert Curthose is sent to invade Scotland; he reaches as far as Falkirk.
- October 14 – Battle on the Elster between the armies of the two rival brothers-in-law kings of the German states, Henry IV, King of the Romans and Rudolf of Rheinfelden meeting at the Weisse Elster river in the Great Saxon Revolt civil war of the Holy Roman Empire. Rudolf is the victor but dies the following day at Merseburg of wounds received.
- King William I of England, in a letter, refuses to accept Pope Gregory VII as his overlord.
- King Alfonso VI of León and Castile establishes Latin liturgy in the Catholic Church in place of the Mozarabic Rite.
- Osmund (bishop of Salisbury), builds Devizes Castle in England.
- c. 1080–1100 – The Master of Daphni creates the mosaic of Christ Pantocrator in the central dome of the catholikon at Daphni Monastery in Greece.
- The Rubenid Principality of Cilicia gains independence after its founder, Ruben I, Prince of Armenia, succeeds in establishing his authority in the mountainous regions of Cilicia (approximate date).
- The Seljuq-led Turkish tribes begin the Great Turkish Invasion of the Kingdom of Georgia.
- The Song dynasty Chinese polymath scientist and statesman Shen Kuo begins his defensive military campaign against the Tangut people of the Western Xia Kingdom, successfully defending the invasion route to Yan'an.
- April 17 – King Harald III of Denmark (b. 1041)
- May 14 – William Walcher, Bishop of Durham
- July 5 – Ísleifur Gissurarson, Icelandic bishop (b. 1006)
- October 15 – Duke Rudolf of Rheinfelden, leader of the Great Saxon Revolt (b. c.1025)
- Williams, Hywel (2005). Cassell's Chronology of World History. London: Weidenfeld & Nicolson. pp. 113–114. ISBN 0-304-35730-8.
- John France. Victory in the East (Book extract). "Godfrey was almost certainly present in support of Henry IV at the battle of Elster in 1080 (sic 1085... an error or typo), when the forces of the anti-king Rudolf triumphed on the field only to see their victory nullified because Rudolf was killed"
- Picard C. (1997) La mer et les musulmans d'Occident au Moyen Age. Paris: Presses Universitaires de France.