named Dar al-Salam (abode of peace). It soon fell heir to the power and prestige of its predecessors in the area — Babylon and Ctesiphon — and has lived in legend and in history as the peerless symbol of the glory of Abbasid Islam and the scene of The Thousand and One Nights.
With the removal of the capital to distant Baghdad the hereditary Byzantine enemy ceased to be of major concern. Nevertheless, al-Mansur and his successors strengthened the border fortresses of Syria and fortified the seaports of Lebanon. In 759 a band of Christians in Lebanon, resentful of harsh conditions and intolerable exactions and en- couraged by the presence of a Byzantine fleet in the waters of Tripoli, burst forth from their mountain stronghold al- Munaytirah and plundered several villages in the Biqa. They were ambushed by Abbasid cavalry and cut down. In retaliation the governor uprooted the mountain villagers, many of whom had taken no part in the revolt, and had them dispersed all over Syria. This was the first of many such desperate uprisings, all repressed with similar ruth- lessness.
Next on al-Mansur's list of victims were the Alids, who had helped overthrow the Umayyads on the naive assump- tion that the Abbasids were fighting their battles but were now disillusioned. The Alids persisted in claiming for their imams the sole right to preside over the destinies of Islam, thus reducing the caliphs to the position of usurpers. Their movement again went underground but never missed an opportunity to rise in open revolt. A rebellion in 762 headed by two great-grandsons of al-Hasan was ruthlessly crushed and the brothers were promptly executed.
Despite these set-backs the Syrians continued to express their opposition by word and deed. A rejoinder by one of them to al-Mansur's remark that the people were lucky to escape the plague in his days typifies the then prevailing sentiment : c God is too good to subject us to pestilence and your rule at the same time. 5 They never did wholly re-
