This book is a study of the early history of the lbadiyya in North Africa, a moderate movement among the Kharijis which from its base in Basra gradually spread among the Berbers of the Maghrib in the 750s. The Berbers found in this new religious allegiance an attractive ideology with which to rebel against the central caliphate. An Ibadi imamate, headed by the Rustamid dynasty, was founded in Tahart in 160 or 162/777 or 779 and lasted until 296/909,...