Umayyad, Abbasids, Fatimids, Persians, Turks

Purely Arab rule, exercised from Damascus by the Umayyad dynasty, lasted a little over a century. The Umayyads were overthrown in 750 by their bitter antagonists, the Abbasids, whose two centuries of government was increasingly dominated first by Persians, then by Turks. When the Abbasids were in turn defeated by the Fatimids, the Arabs had long had no part in the government of the empire, either at the center or in the provinces.

Source: Katz, Samuel. Battleground: Fact & Fantasy in Palestine. (p. 110 – 111)