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 the Kufians. He resided outside the town with the Khorasanian troops, and with them went first to Hira, then to Hāshimīya, which he caused to be built in the neighbourhood of Anbar. For their real sympathies, he knew, were with the house of Ali, and Abu Salama their leader, who had reluctantly taken the oath of allegiance, did not conceal his disappointment. Abu Jahm, the (q.v.; also ), or “helper,” of Abu Moslim, advised that Abu Jaʽfar, the caliph’s brother, should be sent to Khorasan to consult Abu Moslim. The result was that Abu Salama was assassinated, and at the same time Suleimān b. Kathīr, who had been the head of the propaganda in Khorasan, and had also expected that the Mahdi would belong to the house of Ali. It is said that Abu Jaʽfar, whilst in Khorasan, was so impressed by the unlimited power of Abu Moslim, and saw so clearly that, though he called his brother and himself his masters, he considered them as his creatures, that he vowed his death at the first opportunity.

The ruin of the Omayyad empire and the rise of the new dynasty did not take place without mighty convulsions. In Bathanīya and the Ḥaurān, in the north of Syria, in Mesopotamia and Irak Khorasan insurrections had to be put down with fire and sword. The new caliph then distributed the provinces among the principal members of his family and his generals. To his brother Abu Jaʽfar he gave Mesopotamia, Azerbaijan and Armenia; to his uncle Abdallah b. Ali, Syria; to his uncle Daʽud, Hejaz, Yemen and Yamāma (Yemama); to his cousin ʽĪsā b. Mūsā, the province of Kufa. Another uncle, Suleimān b. Ali, received the government of Baṣra with Bahrein and Oman; Ismā ʽīl b. Ali that of Ahwāz; Abu Moslim, Khorasan and Transoxiana; Mahommed b. Ashʽath, Fārs; Abu ʽAun, Egypt. In Sind the Omayyad governor, Manṣūr b. Jomhūr, had succeeded in maintaining himself, but was defeated by an army sent against him under Mūsā b. Kaʽb, and the black standard of the Abbasids was raised over the city of Manṣūra. Africa and Spain are omitted from this catalogue, because the Abbasids never gained any real footing in Spain, while Africa remained, at least in the first years, in only nominal subjection to the new dynasty. In 754 Abu Moslim came to Irak to visit Abu’l-Abbas and to ask his permission to make the pilgrimage to Mecca. He was received with great honour, but the caliph said that he was sorry not to be able to give him the leadership of the pilgrimage, which he had already purposely entrusted to his brother, Abu Jaʽfar.

Abu’l-Abbas died on the 13th of Dhuʽl-ḥijja 136 (5th June 754). He seems to have been a man of limited capacity, and had very little share in the achievements accomplished in his name. He initiated practically nothing without the consent of Abu Jahm, who was thus the real ruler. In the few cases where he had to decide, he acted under the influence of his brother Abu Jaʽfar.

2. Reign of Mansur.—Abuʽl-Abbas had designated as his successors first Abu Jaʽfar, surnamed al-Manṣūr (the victorious), and after him his cousin ʽĪsā b. Mūsā. Abu Jaʽfar was, according to the historians, older than Abuʽl-Abbas, but while the mother of the latter belonged to the powerful Yemenite tribe of al-Ḥārith b. Kaʽb, the mother of Abu Jaʽfar was a Berber slave-girl. But he was a son of Mahommed b. Ali, and was therefore preferred by Abu Moslim to his uncles and cousins. Abuʽl-Abbas, however, had promised the succession to his uncle Abdallah b. Ali, when he marched against Merwan. When the news of the death of Abuʽl-Abbas reached Abdallah, who at the head of a numerous army was on the point of renewing the Byzantine war, he came to Harran, furious at his exclusion, and proclaimed himself caliph. Abu Moslim marched against him, and the two armies met at Nisibis, where, after a number of skirmishes, a decisive engagement took place (28th November 754). Abdallah was defeated and escaped to Baṣra, where he found a refuge with his brother Suleimān. A year later he asked for pardon, and took the oath of allegiance to Mansur. The caliph spared his life for a time, but he did not forget. In 764 Abdallah met his death by the collapse of his house, which had been deliberately undermined.

The first care of Mansur was now to get rid of the powerful Abu Moslim, who had thus by another brilliant service strengthened his great reputation. On pretence of conferring with him on important business of state, Mansur induced him, in spite of the warnings of his best general, Abu Naṣr, to come to Madāin (Ctesiphon), and in the most perfidious manner caused him to be murdered by his guards. Thus miserably perished the real founder of the Abbasid dynasty, the Ṣāḥib addaula, as he is commonly called, the Amīn (trustee) of the House of the Prophet. A witty man, being asked his opinion about Abu Jaʽfar (Mansur) and Abu Moslim, said, alluding to the Koran 21, verse 22, “if there were two Gods, the universe would be ruined.” The Khorasanian chiefs were bribed into submission, and order was at last re-established by Mansur’s general Khāzim b. Khozaima in Mesopotamia, and by Abu Daʽud, the governor of Khorasan in the east.

About the same time Africa and Spain escaped from the dominion of the eastern Caliphate; the former for a season, the latter permanently. The cause of the revolt of Africa was as follows. Mansur had written to Abdarrahmān, announcing the death of Abuʽl-Abbas, and requiring him to take the oath of allegiance. Abdarrahmān sent in his adhesion, together with a few presents of little value. The caliph replied by a threatening letter which angered Abdarrahmān. He called the people together at the hour of prayer, publicly cursed Mansur from the pulpit and declared him deposed. He next caused a circular letter, commanding all Maghribins to refuse obedience to the caliph, to be read from the pulpit throughout the whole extent of the Maghrib (western North Africa). A brother of Abdarrahmān, Ilyās, saw in this revolt an opportunity of obtaining the government of Africa for himself. Seconded by many of the inhabitants of Kairawan, who had remained faithful to the cause of the Abbasids, he attacked his brother, slew him, and proclaimed himself governor in his stead. This revolution in favour of the Abbasids was, however, not of long duration. Ḥabīb, the eldest son of Abdarrahmān, who had fled in the night of his father’s murder, was captured, but the vessel which was to convey him to Spain having been detained by stress of weather, his partisans took arms and rescued him. Ilyās was marching against them, when the idea occurred to Ḥabīb of challenging him to single combat. Ilyās hesitated, but his own soldiers compelled him to accept the challenge. He measured arms with Ḥabīb, and was slain. The party of independence thus triumphed, but in the year 144 (761) Mahommed b. Ashʽath, the Abbasid general, entered Kairawan and regained possession of Africa in the name of the eastern caliph. From the year 800, it must be added, Africa only nominally belonged to the Abbasids; for, under the reign of Harun al-Rashid, Ibrahīm b. al-Aghlab, who was invested with the government of Africa, founded in that province a distinct dynasty, that of the Aghlabites.

At the same time as the revolt in Africa, the independent Caliphate of the western Omayyads was founded in Spain. The long dissensions which had preceded the fall of that dynasty in the East had already prepared the way for the independence of a province so distant from the centre of the empire. Every petty amir then tried to seize sovereign power for himself, and the people groaned under the consequent anarchy. Weary of these commotions, the Arabs of Spain at last came to an understanding among themselves for the election of a caliph, and their choice fell upon one of the last survivors of the Omayyads, Abdarrahmān b. Moawiya, grandson of the caliph Hishām. This prince was wandering in the deserts of Africa, pursued by his implacable enemies, but everywhere protected and concealed by the desert tribes, who pitied his misfortunes and respected his illustrious origin. A deputation from Spain sought him out in Africa and offered him the Caliphate, which he accepted with joy. On the 1st Rabia I. 138 (14th August 755) Abdarrahmān landed in the Iberian peninsula, where he was universally welcomed, and