 The Abbasids also distinguished themselves from the Umayyads by attacking the Umayyads' moral character and administration.According to Ira Lapidus, "The Abbasid revolt was supported largely by Arabs, mainly the aggrieved settlers of Marw with the addition of the Yemeni faction and their Mawali".The Abbasids also appealed to non-Arab Muslims, known as "mawali", who remained outside the kinship-based society of the Arabs and were perceived as a lower class within the Umayyad empire.