1055

Millennium:	2nd millennium
Centuries:	10th century – 11th century – 12th century
Decades:	1020s  1030s  1040s  – 1050s –  1060s  1070s  1080s
Years:	1052 1053 1054 – 1055 – 1056 1057 1058

1055 by topic
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Archaeology Architecture Art Literature Poetry Music Science
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Birth and death categories
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Establishments and disestablishments categories
Establishments Disestablishments
Works category
Works

1055 (MLV) was a common year starting on Sunday of the Julian calendar, the 1055th year of the Common Era (CE) and Anno Domini (AD) designations, the 55th year of the 2nd millennium, the 55th year of the 11th century, and the 6th year of the 1050s decade. As of the start of 1055, the Gregorian calendar was 6 days ahead of the Julian calendar, which was the dominant calendar of the time.

1055

Africa

• The Almoravids conquer Aoudaghost (present-day Mauritania).

Asia

• December 18 – The Seljuk Turks capture Baghdad. Al-Malik al-Rahim is taken prisoner.

Europe

• January 11 – Theodora becomes reigning empress of the Byzantine Empire.
• October 24 – Ralph the Timid is defeated by the Welsh.
• Beginning of the campaign of Ferdinand I of Castile against al-Andalus. The king conquers Seia from the Christian allies of the Muslim taifas.

Art

• Construction on the Liaodi Pagoda in Hebei is complete. It is the tallest pagoda in Chinese history standing at a height of 84 m (275 ft) tall.

Religion

• April 13 – Pope Victor II succeeds Pope Leo IX as the 153rd pope.
• An abbey was set up at Tihany, Hungary by András (Andrew) I. The written agreement is the earliest record in the Hungarian language.

Deaths

• January 11 – Constantine IX Monomachos, emperor of the Eastern Roman Empire
• May 26 – Margrave Adalbert of Austria
• Princess Goda of England