Hence it is very possible that on a closer investigation, we could discover a great difference in the intellectual character of these two sects, not so much perhaps in religious doctrines, about which there is here little room for enquiry, as in moral feelings and views of life. The progress of the Arabian conquests was not checked by these internal disputes. Five years after the death of Mahomet, and fifteen from the commencement of the Hegira, the city of Jerusalem was conquered by the arms of the Arabs; and in the eighteenth year of the same era, Egypt became a Mussulman province. The thirtieth year of the Hegira was not yet terminated, before the whole Empire of Persia was subdued, and its last monarch of the race of the Sassanides, Yezdegerd had perished in foreign parts, a suppliant and a fugitive. In the fiftieth year of the Hegira, Arabian vessels menaced and beseiged Constantinople, which was indebted for its deliverance chiefly to the use of the Greek fire. In the ninetieth year of the same era, while on one side the Arabs extended their victorious arms over India, they subverted on the other the Visigoth kingdom in Spain and Portugal, and became masters of the whole Hesperian Peninsula, as far as those inaccessible mountains, in whose fastnesses a fugitive remnant of the ruling Goths, and of the old inhabitants of the country had intrenched themselves, thence to carry on that struggle for freedom, which till the final conquest of Granada, and the complete expulsion of the Moors from Spain, lasted for a period of eight hundred years. After the downfal of the first dynasty of Caliphs of the house of Ommiyah, and the subsequent accession of the Abbassides to the empire, a separate and independent Caliphate was established in Mussulman Spain, and lasted there for several ages. The Arabs had scarce achieved the conquest of Spain, when they aspired to the possession of the Visi-Goth and Burgundian provinces of France. But a term was at last put to the progress of their arms, by the mighty victory which the Frank hero, Charles Martel, gained between Tours and Poitiers, over their General Abderame, who fell on the field with the flower of his troops, in the twentieth year after the conquest of Spain, and in the hundred and tenth year of the Hegira. Thus did the arm of Charles Martel save and deliver the Christian nations of the West, from the deadly grasp of all-destroying Islam. In Asia the universal dominion of the Arabs was more and more firmly consolidated, and the second of the Abbassides, Almansor, erected the city of Bagdad, or the new Babylon, not far from the country where the old was situated, and which was thenceforth the vast metropolis of an immense empire.[5]