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Published online by Cambridge University Press: 01 August 2004
In A. D. 945, eleven days after receiving his title from the ruling Abbasid Caliph al-Mustakfi, the Buwayhid amir Muizz al-Dawla deposed him. Like the green dome of the palace of Abu Jafar Mansur that had crumbled during the spring rains of 939, the Abbasid caliphate was collapsing inward. Not until the turn of the next century, with the loosening of the hold of the Buwayhid amirs on Baghdad, did a caliph make guarded efforts to assert his divinely sanctioned authority outside his sacred precinct. By that time, beyond the walls of the caliphal palace, monumental changes in the structure of power had long since occurred.