Whatever be the amount of physical good or evil immediately resulting to Spain from her new discoveries, their moral consequences were inestimable. The ancient limits of human thought and action were overleaped; the veil which had covered the secrets of the deep for so many centuries was removed; another hemisphere was thrown open; and a boundless expansion promised to science, from the infinite varieties in which nature was exhibited in these unexplored regions. The success of the Spaniards kindled a generous emulation in their Portuguese rivals, who soon after accomplished their long-sought passage into the Indian seas, and thus completed the great circle of maritime discovery. It would seem as if Providence had postponed this grand event, until the possession of America, with its stores of precious metals, might supply such materials for a commerce with the east, as should bind together the most distant quarters of the globe. The impression made on the enlightened minds of that day is evinced by the tone of gratitude and exultation, in which they indulge, at being permitted to witness the consummation of these glorious events, which their fathers had so long, but in vain, desired to see. The discoveries of Columbus occurred most opportunely for the Spanish nation, at the moment when it was released from its tumultuous struggle in which it had been engaged for so many years with the Moslems. The severe schooling of these wars had prepared it for entering on a bolder theater of action, whose stirring and romantic perils raised still higher the chivalrous spirit of the people. The operation of this spirit was shown in the alacrity with which private adventurers embarked in expeditions to the New World, under cover of the general license, during the last two years of this century. Their efforts, combined with those of Columbus, extended the range of discovery from its original limits; twenty-four degrees of north latitude, to probably more than fifteen south, comprehending some of the most important territories in the western hemisphere. Before the end of 1500, the principal groups of the West India islands had been visited, and the whole extent of the southern continent coasted from the Bay of Honduras to Cape St. Augustine. One adventurous mariner, indeed, named Lepe, penetrated several degrees south of this, to a point not reached by any other voyager for ten or twelve years after. A great part of the kingdom of Brazil was embraced in this extent, and two successive Castilian navigators landed and took formal possession of it for the crown of Castile, previous to its reputed discovery by the Portuguese Cabral; although the claims to it were relinquished by the Spanish Government, conformably to the famous line of demarkation established by the treaty of Tordesillas.