Bilad al-Sham
Bilad al-Sham (Arabic: بِلَاد الشَّام, romanized: Bilād al-Shām), often referred to as Islamic Syria or simply Syria in English-language sources, was a province of the Rashidun, Umayyad, Abbasid, and Fatimid caliphates. It roughly corresponded with the Byzantine Diocese of the East, conquered by the Muslims in 634–647.