Arabia, History Of, Oman

In the last decades of the 7th century the Ibadites (Ibadiyah), regarded as a moderate Kharijite sect, conquered southern Arabia, established a Kindite imam in Hadhramaut, occupied San'a', and took Mecca and Medina, before the Umayyads drove them back to Hadhramaut. Oman had early become Kharijite; the first Ibadite imam, al-Julanda ibn Mas'ud, was elected at about the beginning of the 'Abb