I have told you that Columbus had a longing to do something great from the time when, as a little boy, he had hung around the wharves in Genoa and looked at the ships sailing east and west and talked with the sailors and wished that he could go to sea. Perhaps what he had learned at school--how some men said that the earth was round--and what he had heard on the wharves about the wonders of Cathay set him to thinking and to dreaming that it might be possible for a ship to sail around the world without falling off. At any rate, he kept on thinking and dreaming and longing until, at last, he began doing. Some of the sailors sent out by Prince Henry of Portugal, of whom I have told you, in their trying to sail around Africa discovered two groups of islands out in the Atlantic that they called the Azores, or Isles of Hawks, and the Canaries, or Isles of Dogs. When Columbus was in Portugal in 1470 he became acquainted with a young woman whose name was Philippa Perestrelo. In 1473 he married her. Now Philippa's father, before his death, had been governor of Porto Santo, one of the Azores, and Columbus and his wife went off there to live. In the governor's house Columbus found a lot of charts and maps that told him about parts of the ocean that he had never before seen, and made him feel certain that he was right in saying that if he sailed away to the West he should find Cathay. At that time there was an old man who lived in Florence, a city of Italy. His name was Toscanelli. He was a great scholar and studied the stars and made maps, and was a very wise man. Columbus knew what a wise old scholar Toscanelli was, for Florence is not very far from Genoa. So while he was living in the Azores he wrote to this old scholar asking him what he thought about his idea that a man could sail around the world until he reached the land called the Indies and at last found Cathay. Toscanelli wrote to Columbus saying that he believed his idea was the right one, and he said it would be a grand thing to do, if Columbus dared to try it. Perhaps, he said, you can find all those splendid things that I know are in Cathay--the great cities with marble bridges, the houses of marble covered with gold, the jewels and the spices and the precious stones, and all the other wonderful and magnificent things. I do not wonder you wish to try, he said, for if you find Cathay it will be a wonderful thing for you and for Portugal. That settled it with Columbus. If this wise old scholar said he was right, he must be right. So he left his home in the Azores and went to Portugal. This was in 1475, and from that time on, for seventeen long years he was trying to get some king or prince to help him sail to the West to find Cathay.