1 jan 1027 ano - Treaty between the Byzantine emperor and the Fatimid caliph
Descrição:
 A treaty is signed between the Byzantine emperor and the Fatimid caliph. It permits the rebuilding of the Church of the Holy Sepulchre, and allows Christians who had converted to Islam under duress to return to their former faith. It also granted the emperor the right to designate the patriarch of Jerusalem. In return, the mosque of Constantinople would be reopened. 
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