The epic struggle between East and West, the Umayyad Caliphate and the Byzantine Empire during the Siege of Constantinople.
400 years before the First Crusade, Christianity was on its knees before an ascendant Muslim Caliphate. Yet only 80 years before that, in AD629, the late Roman Emperor Heraclius had staged a grandiose ceremony in the city of Jerusalem to mark the Empire’s final and...
