Ziauddin Barani (Urdu: ضیاء الدین برنی‎; 1285–1358 CE) was an Indian Muslim political thinker of the Delhi Sultanate located in present-day Northern India during Muhammad bin Tughlaq and Firuz Shah's reign. He was best known for composing the Tarikh-i-Firoz Shahi (also called Tarikh-i-Firuz Shahi), a work on medieval India, which covers the period from the reign of Ghiyath al-Din Tughluq to the first six years of the reign of Firoz Shah Tughluq; and the Fatwa-i-Jahandari which promoted a hierarchy among Muslim communities in the Indian subcontinent, although according to M. Athar Ali it was not based on race or even like the caste system, but taking as a model of Sassanid Iran, which promoted an idea of aristocracy through birth and which was claimed by Persians to be "fully in accordance with the main thrust of Islamic thought as it had developed by that time", including in the works of his near-contemporary Ibn Khaldun. Source: Wikipedia (en)