1055

Events 
 By place 

 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. 

 By topic 
 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.

 Births 

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

 References 

Category:1055