Nothing more is known of this voyage than is contained in this letter; but notwithstanding the gross inaccuracies of the statement, it seems sufficient ground for believing that Columbus visited Iceland, or at least went beyond it. The size of the island indicates that it could have been no other. Whether he landed there, and if so, whether he obtained from the natives any knowledge of the continent lying far to the west and southwest, must, perhaps, forever be a matter of mere conjecture. It is, however, hardly probable that in the year 1477 Columbus would go to Iceland without making inquiries in regard to lands lying beyond. The Icelanders had long been the great explorers of the north. As we shall presently see, Columbus had already received the famous letter of Toscanelli, in which the practicability of reaching Asia by sailing due west was fully set forth; and we know in other ways that the mind of Columbus was already fully imbued with the idea of the westward voyage of discovery. It is certain, moreover, that the Icelanders could have given him considerable valuable information. The voyages that had been made by the Norwegians from time to time during the eleventh and twelfth centuries must have been known at least by the more intelligent of the people of Iceland. It seems highly improbable, moreover, that Columbus, already thirsting for more geographical knowledge, would visit such an island without availing himself of every opportunity of securing further information. But on the other hand, we must not exaggerate the importance of this conjecture. There is no evidence whatever that he even landed. In all of the writings of Columbus there is nowhere any hint of any knowledge gained from these sources; and this very important truth should not be lost sight of in the weighing of probabilities. In view of all the facts, it seems hardly possible that Columbus can have gained from this expedition anything more than at best a somewhat vague confirmation of the ideas and purposes that had already taken definite shape in his mind.