Events Manuel I Comnenus becomes Byzantine Emperor. July 1 – Battle of Wilton in England. September 26 — Pope Celestine II succeeds Pope Innocent II as the 165th pope. October 5 — Treaty of Zamora: Portugal's recognized by the Kingdom of Leon as an independent kingdom, although it's functioned as one since the Battle of São Mamede. Robert of Ketton makes the first European translation of the Qur'an into Latin. The exploration of the uncharted eastern parts of German… (More on 1143)