What Happened in 1055
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- Jan 11 Theodora crowned Empress of the Byzantine Empire
- Apr 13 Bishop Gebhard van Eichstattt named Pope Victor II
- Dec 19 Seldjuken under Toghril Beg occupy Baghdad
- Jan 11 Constantine IX Monomachos, Emperor of Byzantium, dies
- May 26 Margrave Adalbert of Austria
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List of Years