Volume XXI of the History of al-Ṭabarī (from the second part of 66/685 to 73/693) covers the resolution of "the Second Civil War." This conflict, which has broken out in 64/683 after the death of the Umayyad caliph Yazīd I, involved the rival claims of the Umayyads (centered in Syria) and the Zubayrids (centered in the Hijaz), each of whom claimed the caliphal title, Commander of the Faithful. Both parties contented for control of...