Freed from the countless bonds which elsewhere in Europe checked progress, having reached a high degree of individual development and been schooled by the teachings of antiquity, the Italian mind now turned to the discovery of the outward universe, and to the representation of it in speech and in form. On the journeys of the Italians to distant parts of the world, we can here make but a few general observations. The crusades had opened unknown distances to the European mind, and awakened in all the passion for travel and adventure. It may be hard to indicate precisely the point where this passion allied itself with, or became the servant of, the thirst for knowledge; but it was in Italy that this was first and most completely the case. Even in the crusades the interest of the Italians was wider than that of other nations, since they already were a naval power and had commercial relations with the East. From time immemorial the Mediterranean sea had given to the nations that dwelt on its shores mental impulses different from those which governed the peoples of the North; and never, from the very structure of their character, could the Italians be adventurers in the sense which the word bore among the Teutons. After they were once at home in all the eastern harbours of the Mediterranean, it was natural that the most enterprising among them should be led to join that vast international movement of the Mohammedans which there found its outlet. A new half of the world lay, as it were, freshly discovered before them. Or, like Polo of Venice, they were caught in the current of the Mongolian peoples, and carried on to the steps of the throne of the Great Khan. At an early period, we find Italians sharing in the discoveries made in the Atlantic ocean; it was the Genoese who, in the 13th century, found the Canary Islands.[651] In the same year, 1291, when Ptolemais, the last remnant of the Christian East, was lost, it was again the Genoese who made the first known attempt to find a sea-passage to the East Indies.[652] Columbus himself is but the greatest of a long list of Italians who, in the service of the western nations, sailed into distant seas. The true discoverer, however, is not the man who first chances to stumble upon anything, but the man who finds what he has sought. Such a one alone stands in a link with the thoughts and interests of his predecessors, and this relationship will also determine the account he gives of his search. For which reason the Italians, although their claim to be the first comers on this or that shore may be disputed, will yet retain their title to be pre-eminently the nation of discoverers for the whole latter part of the Middle Ages. The fuller proof of this assertion belongs to the special history of discoveries.[653] Yet ever and again we turn with admiration to the august figure of the great Genoese, by whom a new continent beyond the ocean was demanded, sought and found;