This is is history book. For several hundred years after the great Saracen invasion in the beginning of the eighth century, Spain was broken up into a number of small but independent states, divided in their interests, and often in deadly hostility with one another. It was inhabited by races, the most dissimilar in their origin, religion, and government, the least important of which has exerted a sensible influence on the character and institutions of its present inhabitants. At the close of the fifteenth century, these various races were blended into one great nation, under one common rule. Its territorial limits were widely extended by discovery and conquest. Its domestic institutions, and even its literature, were moulded into the form, which, to a considerable extent, they have maintained to the present day. It is the object of the present narrative to exhibit the period in which these momentous results were effected, —the reign of Ferdinand and Isabella. By the middle of the fifteenth century, the number of states, into which the country had been divided, was reduced to four; Castile, Aragon, Navarre, and the Moorish kingdom of Granada. The last, comprised within nearly the same limits as the modern province of that name, was all that remained to the Moslems of their once vast possessions in the Peninsula. Its concentrated population gave it a degree of strength altogether disproportioned to the extent of its territory; and the profuse magnificence of its court, which rivalled that of the ancient caliphs, was supported by the labors of a sober, industrious people, under whom agriculture and several of the mechanic arts had reached a degree of excellence, probably unequalled in any other.