in historical sources and studies, among abbasid caliphs, al-amin (april 787 – 24/25 september 813) characterized as a caliph with moral vices. this negative picture emerged from the accounts of muslims historiographical texts, such as al-akhbâr al-tiwâl, in first centuries of islam and the contemporary historical studies about abbasid caliphate, based on that accounts, accept it as his real, h...