name The Eastern Key (London and Cairo 1204/1964). 1162 births 1231 deaths Writers from Baghdad 12th-century people from the Abbasid Caliphate Physicians from the Abbasid Caliphate Egyptologists 13th-century physicians Travel writers of the medieval Islamic world 13th-century people from the Abbasid Caliphate 12th-century jurists 13th-century jurists 12th-century Arabs 13th-century Arabs