Manners, Norms, and Customs (Rusoom) of the House of Governance in the First Age (Era) of the Abbasid Caliphate 750 - 865Ad

Literally the concept of Al-Rasm means an attempt of picturing things and generally it means all the customs habits manners superstition and laws that limits the way of communication between the caliph (the successor) and the common people including his favorite. In the field of specialized study a book was written in the fifth century of Hijra by HilalIbnMuhsin Al-sababi called (Rusum Dar Al-khil...