Oman - Restoration, Rule, Sultanate: Aḥmad ibn Saʿīd, the governor of Ṣuḥār, drove out the Persian invaders and was elected imam in 1749, thus establishing the Āl Bū Saʿīd dynasty that still rules Oman today. Under the rule of his grandson, Saʿīd ibn Sulṭān (1806/07–56), Oman reasserted control over Zanzibar, but upon his death the Āl Bū Saʿīd empire was …Web