In a letter which Toscanelli wrote to Columbus in 1474, he inclosed a copy of a letter which he had already sent to an officer of Alphonso V, the King of Portugal. In writing to Columbus, he says, “I see that you have a great and noble desire to go into that country (of the East) where the spices come from, and in reply to your letter I send you a copy of that which I addressed some years ago to my attached friend in the service of the most serene King of Portugal. He had an order from his Highness to write me on this subject. . . . If I had a globe in my hand, I could show you what is needed. But I prefer to mark out the route on a chart like a marine chart, which will be an assistance to your intelligence and enterprise. On this chart I have myself drawn the whole extremity of our western shore from Ireland as far down as the coast of Guinea toward the South, with all the islands which are to be found on this route. Opposite this (that is, the shores of Ireland and Africa) I have placed directly at the West the beginning of the Indies with the islands and places where you will land. You will see for yourself how many miles you must keep from the arctic pole toward the equator, and at what distance you will arrive at these regions so fertile and productive of spices and precious stones.” In Toscanelli’s letter, he not only indicates Japan, but, in the middle of the ocean, he places the island of Antilia. This old name afterwards gave the name by which the French still call the West Indies, Les Antilles. Toscanelli gives the exact distance which Columbus will have to sail: “From Lisbon to the famous city of Quisay (Hang-tcheou-fou, then the capital of China) if you take the direct route toward the West, the distance will be thirty-nine hundred miles. And from Antilia to Japan it will be two hundred and twenty-five leagues.” Toscanelli says again, “You see that the voyage that you wish to attempt is much legs difficult than would be thought. You would be sure of this if you met as many people as I do who have been in the country of spices.”
While there were so many suggestions made that it would be possible to cross the Atlantic, there was one man who determined to do this. This man was Christopher Columbus. But he knew well that he could not do it alone. He must have money enough for an expedition, he must have authority to enlist crews for that expedition, and he must have power to govern those crews when they should arrive in the Indies. In our times such adventures have been conducted by mercantile corporations, but in those times no one thought of doing any such thing without the direct assistance and support of some monarch.