Respuesta :
Answer: Arabs.
Explanation:
In 750 CE, the Abbasids overcame the Umayyad dynasty. They backed the non-Arab Muslims, by transferring the empire’s capital from Damascus, in what we now know as Syria, to Baghdad, in today´s Iraq. The Persian administration gradually supplanted the old Arab aristocracy, while the Abbasids built the new positions of vizier and emir to select their central power.