The History of the Decline and Fall of the Roman Empire - Edward Gibbon [1786]
The best of their race, the pious Omar, was dissatisfied with his own title: their personal virtues were insufficient to justify a departure from the order of succession; and the eyes and wishes of the faithful were turned towards the line of Hashem, and the kindred of the apostle of God. Of these the Fatimites were either rash or pusillanimous; but the descendants of Abbas cherished, with courage and discretion, the hopes of their rising fortunes. From an obscure residence in Syria, they secretly despatched their agents and missionaries, who preached in the Eastern provinces their hereditary indefeasible right; and Mohammed, the son of Ali, the son of Abdallah, the son of Abbas, the uncle of the prophet, gave audience to the deputies of Chorasan, and accepted their free gift of four hundred thousand pieces of gold. After the death of Mohammed, the oath of allegiance was administered in the name of his son Ibrahim to a numerous band of votaries, who expected only a signal and a leader; and the governor of Chorasan continued to deplore his fruitless admonitions and the deadly slumber of the caliphs of Damascus, till he himself, with all his adherents, was driven from the city and palace of Meru, by the rebellious arms of Abu Moslem. ^35 That maker of kings, the author, as he is named, of the call of the Abbassides, was at length rewarded for his presumption of merit with the usual gratitude of courts. A mean, perhaps a foreign, extraction could not repress the aspiring energy of Abu Moslem. Jealous of his wives, liberal of his wealth, prodigal of his own blood and of that of others, he could boast with pleasure, and possibly with truth, that he had destroyed six hundred thousand of his enemies; and such was the intrepid gravity of his mind and countenance, that he was never seen to smile except on a day of battle. In the visible separation of parties, the green was consecrated to the Fatimites; the Ommiades were distinguished by the white; and the black, as the most adverse, was naturally adopted by the Abbassides. Their turbans and garments were stained with that gloomy color: two black standards, on pike staves nine cubits long, were borne aloft in the van of Abu Moslem; and their allegorical names of the night and the shadow obscurely represented the indissoluble union and perpetual succession of the line of Hashem. From the Indus to the Euphrates, the East was convulsed by the quarrel of the white and the black factions: the Abbassides were most frequently victorious; but their public success was clouded by the personal misfortune of their chief. The court of Damascus, awakening from a long slumber, resolved to prevent the pilgrimage of Mecca, which Ibrahim had undertaken with a splendid retinue, to recommend himself at once to the favor of the prophet and of the people. A detachment of cavalry intercepted his march and arrested his person; and the unhappy Ibrahim, snatched away from the promise of untasted royalty, expired in iron fetters in the dungeons of Haran. His two younger brothers, Saffah ^* and Almansor, eluded the search of the tyrant, and lay concealed at Cufa, till the zeal of the people and the approach of his Eastern friends allowed them to expose their persons to the impatient public. On Friday, in the dress of a caliph, in the colors of the sect, Saffah proceeded with religious and military pomp to the mosch: ascending the pulpit, he prayed and preached as the lawful successor of Mahomet; and after his departure, his kinsmen bound a willing people by an oath of fidelity. But it was on the banks of the Zab, and not in the mosch of Cufa, that this important controversy was determined. Every advantage appeared to be on the side of the white faction: the authority of established government; an army of a hundred and twenty thousand soldiers, against a sixth part of that number; and the presence and merit of the caliph Mervan, the fourteenth and last of the house of Ommiyah. Before his accession to the throne, he had deserved, by his Georgian warfare, the honorable epithet of the ass of Mesopotamia; ^36 and