move of themselves, the several birds upon them warbled their natural notes." When, moreover, decline had once commenced, its progress was accelerated by the means taken {238} to arrest it. After the regular troops had been corrupted by faction, the caliphs, for the defence of their person and government, formed a militia; but the soldiers composing this force, not unfrequently foreigners, soon governed with a military despotism similar to that of the janizaries of Turkey, the Mamelukes of Egypt, or the praetorian guards of Rome; and, in addition to these causes of decay, a furious spirit of sectarianism tore asunder the very strength and heart of the empire. The colossal power of the successors of Mohammed, suddenly towering to its awful height, almost as suddenly fell, as if to yield more perfect confirmation of the truth, that all earthly things are destined to pass away, while the word of the living God abideth for ever. Spain, as has been seen, was the first distant province of the Arabian empire which succeeded in separating itself and setting up an independent caliph. As this country had been brought under the Moslem yoke by means chiefly furnished from the northern states of Africa, its independence was likely to produce a corresponding effect upon those states. They were governed in the name of the Bagdad caliphs; but for nearly a century they had been growing into independence, under rulers usually known, from the name of their progenitor, as the Aglabite dynasty. Early in the ninth century, {239} the throne of Mauritania, Massilia, and Carthage was seized by Obeidollah, whose successors assumed the title of Mihidi, or directors of the faithful. The districts of Fez and Tangiers, which had been already wrested from the princes of Bagdad by the real or pretended posterity of Ali, were soon brought under his dominion; and, before the end of the tenth century, all acknowledgment of the Abbassidan rule was obliterated by the suppression of public prayers for the princes of that race. A succession of changes distracted the country for some five centuries afterward; but, about the year 1516, the descendants of Mohammed were raised to the throne of Morocco, which has been transmitted, without interruption, in the same line, to its present possessors. Moez, the last of the African princes of the house of Obeidollah, who seems to have depended for his dominion more on his prowess than on his supposed descent from Mohammed,[3] transferred his court to Grand Cairo, a city which he had built in Egypt after his conquest of that country. Africa was to be held as a fief of this new empire. Large tracts of Syria and the whole of Palestine acknowledged the {240} supremacy of his descendants, commonly known as Fatimites, from their supposed relationship to Ali, and to Fatima, the Prophet's daughter. They possessed also the sovereignty of the Holy Land; against them, therefore, the crusades of Europe were chiefly directed. During these