The white-maned horses of the Atlantic once mastered, there came riders enough. During the next thirty years such men as Amerigo Vespucci (who enjoyed the not singular distinction of having his name associated with the discovery of another man), the Cabots, father and son; Balboa, and Magellan, crossed the sea and visited the new domain. Magellan performed the only unprecedented feat left for mariners by sailing round the earth by way of the South American straits that bear his name; but Vasco da Gama had already entered the Pacific by the Cape of Good Hope. It was by this time beginning to be understood that the new land was really new, and not the other side of the old one; but this only prompted the adventurers to get past or through it to the first goal of their ambition. They had not yet realized the vastness of the Pacific, and took America to be a mere breakwater protecting the precious shores of Cathay. Later, they found that America repaid looting on her own account; but meanwhile there was set on foot that search for the Northwest Passage which resulted in the discovery of almost everything except the Passage itself. To the craze for a Northwest Passage is due the exploration of Baffin's and Hudson's Bays, of the Gulf and River of St. Lawrence, and of the Great Lakes; the establishment of the English and French fur-trading Companies, which hastened the development of Canada; and the settlement of Oregon and Washington. It led English and Spanish explorers and freebooters up the California coast, and on to Vancouver and Bering Straits; Alaska was circumvented, and the Northwest Passage was found, though the everlasting ice mocked the efforts of the finders. In short, the entire continent was tapped and sounded with a view to forcing a way through or round it; and by the time the attempt was finally given up, the contour, size, and possible value of America had been estimated much more quickly and accurately than they would have been, had not India lain west of it.