The history of Spain under the emirs presents a melancholy succession of tragic events arising from antipathy of race, political ambition, religious zeal, and private enmity. An extraordinary degree of instability, misrule, distrust, and avarice characterized their administration. The revolutions which constantly afflicted the Khalifate of Damascus exercised no inconsiderable influence over the viceregal capitals of Kairoan and Cordova. The Ommeyade princes of Syria lived in constant apprehension of death by violence. The methods by which they had arisen in many instances contributed to their overthrow. The assassin of yesterday often became the victim of to-day. The perpetration of every crime, the indulgence in every vice, by the Successors of the Prophet, diminished the faith and loyalty of their subjects and seriously affected the prestige and divine character believed to attach to their office. The subordinates necessarily shared the odium and ignominy of their superiors. The Emir of Spain labored under a twofold disadvantage. He held under the Viceroy of Africa, while the latter was appointed directly by the Khalif. This division of authority and responsibility was not conducive to the interests of good government, social order, or domestic tranquillity. The people of the Peninsula, subject to the caprices of a double tyranny, could not be expected to feel much reverence for the supreme potentate of their government and religion thirteen hundred miles away. With the accession of each ruler arose fresh pretexts for the exercise of every resource of extortion. The rapacity of these officials rivalled in the ingenuity of its devices and the value of its returns the exactions of the Roman proconsuls. The methods by which the majority of them maintained their power provoked universal execration. Under such political conditions, loyalty, union, and commercial prosperity were impossible. The ancient course of affairs--an order which had existed for three hundred years--had been rudely interrupted. Even under favorable auspices the foundation of a government and the reorganization of society would have been tasks fraught with many perplexities and dangers. The Visigothic empire had, it is true, been subdued, but its national spirit, its religion, and its traditions remained. The changes of Moslem governors were sudden and frequent. The average duration of an emir’s official life was exactly twenty-seven months. It required the exertion of the greatest wisdom, of the most enlightened statesmanship, to avert the calamities which must necessarily result from the collision between a heterogeneous populace subjected suddenly to the will of a still more heterogeneous mass of foreigners; to reconcile the interests of adverse factions; to appease the demands of wild barbarians unaccustomed to be denied; to decide alike profound questions of policy and frivolous disputes connected with the various gradations of ecclesiastical