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[ According to a new, though probable, notion, maintained by M de Villoison, (Anecdota Graeca, tom. ii. p. 152-157,) our ciphers are not of Indian or Arabic invention. They were used by the Greek and Latin arithmeticians long before the age of Boethius. After the extinction of science in the West, they were adopted by the Arabic versions from the original Mss., and restored to the Latins about the xith century. * Note: Compare, on the Introduction of the Arabic numerals, Hallam’s Introduction to the Literature of Europe, p. 150, note, and the authors quoted therein.—M.]
Whilst the caliph Walid sat idle on the throne of Damascus, whilst his lieutenants achieved the conquest of Transoxiana and Spain, a third army of Saracens overspread the provinces of Asia Minor, and approached the borders of the Byzantine capital. But the attempt and disgrace of the second siege was reserved for his brother Soliman, whose ambition appears to have been quickened by a more active and martial spirit. In the revolutions of the Greek empire, after the tyrant Justinian had been punished and avenged, an humble secretary, Anastasius or Artemius, was promoted by chance or merit to the vacant purple. He was alarmed by the sound of war; and his ambassador returned from Damascus with the tremendous news, that the Saracens were preparing an armament by sea and land, such as would transcend the experience of the past, or the belief of the present age. The precautions of Anastasius were not unworthy of his station, or of the impending danger. He issued a peremptory mandate, that all persons who were not provided with the means of subsistence for a three years’ siege should evacuate the city: the public granaries and arsenals were abundantly replenished; the walls were restored and strengthened; and the engines for casting stones, or darts, or fire, were stationed along the ramparts, or in the brigantines of war, of which an additional number was hastily constructed. To prevent is safer, as well as more honorable, than to repel, an attack; and a design was meditated, above the usual spirit of the Greeks, of burning the naval stores of the enemy, the cypress timber that had been hewn in Mount Libanus, and was piled along the sea-shore of Phoenicia, for the service of the Egyptian fleet. This generous enterprise was defeated by the cowardice or treachery of the troops, who, in the new language of the empire, were styled of the Obsequian Theme. [11] They murdered their chief, deserted their standard in the Isle of Rhodes, dispersed themselves over the adjacent continent, and deserved pardon or reward by investing with the purple a simple officer of the revenue. The name of Theodosius might recommend him to the senate and people; but, after some months, he sunk into a cloister, and resigned, to the firmer hand of Leo the Isaurian, the urgent defence of the capital and empire. The most formidable of the Saracens, Moslemah, the brother of the caliph, was advancing at the head of one hundred and twenty thousand Arabs and Persians, the greater part mounted on horses or camels; and the successful sieges of Tyana, Amorium, and Pergamus, were of sufficient duration to exercise their skill and to elevate their hopes. At the well-known passage of Abydus, on the Hellespont, the Mahometan arms were transported, for the first time, [1111] from Asia to Europe. From thence, wheeling round the Thracian cities of the Propontis, Moslemah invested Constantinople on the land side, surrounded his camp with a ditch and rampart, prepared and planted his engines of assault, and declared, by words and actions, a patient resolution of expecting the return of seed-time and harvest, should the obstinacy of the besieged prove equal to his own. [1112] The Greeks would gladly have ransomed their religion and empire, by a fine or assessment of a piece of gold on the head of each inhabitant of the city; but the liberal offer was rejected with disdain, and the presumption of Moslemah was exalted by the speedy approach and invincible force of the natives of Egypt and Syria. They are said to have amounted to eighteen hundred ships: the number betrays their inconsiderable size; and of the twenty stout and capacious vessels, whose magnitude impeded their progress, each was manned with no more than one hundred heavy-armed soldiers. This huge armada proceeded on a smooth sea, and with a gentle gale, towards the mouth of the Bosphorus; the surface of the strait was overshadowed, in the language of the Greeks, with a moving forest, and the same fatal night had been fixed by the Saracen chief for a general assault by sea and land. To allure the confidence of the enemy, the emperor had thrown aside the chain that usually guarded the entrance of the harbor; but while they hesitated whether they should seize the opportunity, or apprehend the snare, the ministers of destruction were at hand. The fire-ships of the Greeks were launched against them; the Arabs, their arms, and vessels, were involved in the same flames; the disorderly fugitives were dashed against each other or overwhelmed in the waves; and I no longer find a vestige of the fleet, that had threatened to extirpate the Roman name. A still more fatal and irreparable loss was that of the caliph Soliman, who died of an indigestion, [12] in his camp near Kinnisrin or Chalcis in Syria, as he was preparing to lead against Constantinople the remaining forces of the East. The brother of Moslemah was succeeded by a kinsman and an enemy; and the throne of an active and able prince was degraded by the useless and pernicious virtues of a bigot. [1211] While he started and satisfied the scruples of a blind conscience, the siege was continued through the winter by the neglect, rather than by the resolution of the caliph Omar. [13] The winter proved uncommonly rigorous: above a hundred days the ground was covered with deep snow, and the natives of the sultry climes of Egypt and Arabia lay torpid and almost lifeless in their frozen camp. They revived on the return of spring; a second effort had been made in their favor; and their distress was relieved by the arrival of two numerous fleets, laden with corn, and arms, and soldiers; the first from Alexandria, of four hundred transports and galleys; the second of three hundred and sixty vessels from the ports of Africa. But the Greek fires were again kindled; and if the destruction was less complete, it was owing to the experience which had taught the Moslems to remain at a safe distance, or to the perfidy of the Egyptian mariners, who deserted with their ships to the emperor of the Christians. The trade and navigation of the capital were restored; and the produce of the fisheries supplied the wants, and even the luxury, of the inhabitants. But the calamities of famine and disease were soon felt by the troops of Moslemah, and as the former was miserably assuaged, so the latter was dreadfully propagated, by the pernicious nutriment which hunger compelled them to extract from the most unclean or unnatural food. The spirit of conquest, and even of enthusiasm, was extinct: the Saracens could no longer struggle, beyond their lines, either single or in small parties, without exposing themselves to the merciless retaliation of the Thracian peasants.
An army of Bulgarians was attracted from the Danube by the gifts and promises of Leo; and these savage auxiliaries made some atonement for the evils which they had inflicted on the empire, by the defeat and slaughter of twenty-two thousand Asiatics. A report was dexterously scattered, that the Franks, the unknown nations of the Latin world, were arming by sea and land in the defence of the Christian cause, and their formidable aid was expected with far different sensations in the camp and city. At length, after a siege of thirteen months, [14] the hopeless Moslemah received from the caliph the welcome permission of retreat. [1411] The march of the Arabian cavalry over the Hellespont and through the provinces of Asia, was executed without delay or molestation; but an army of their brethren had been cut in pieces on the side of Bithynia, and the remains of the fleet were so repeatedly damaged by tempest and fire, that only five galleys entered the port of Alexandria to relate the tale of their various and almost incredible disasters. [15]
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[ In the division of the Themes, or provinces described by Constantine Porphyrogenitus, (de Thematibus, l. i. p. 9, 10,) the Obsequium, a Latin appellation of the army and palace, was the fourth in the public order. Nice was the metropolis, and its jurisdiction extended from the Hellespont over the adjacent parts of Bithynia and Phrygia, (see the two maps prefixed by Delisle to the Imperium Orientale of Banduri.)]
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[ Compare page 274. It is singular that Gibbon should thus contradict himself in a few pages. By his own account this was the second time.—M.]
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[ The account of this siege in the Tarikh Tebry is a very unfavorable specimen of Asiatic history, full of absurd fables, and written with total ignorance of the circumstances of time and place. Price, vol. i. p. 498—M.]