But they could not frighten Columbus. He kept on trying. He went from place to place trying to get the ships and sailors he wanted and was bound to have. As you will see in the next chapter, he tried to get help wherever he thought it could be had. He asked the people of his own home, the city of Genoa, where he had lived and played when a boy; he asked the people of the beautiful city that is built in the sea--Venice; he tried the king of Portugal, the king of England, the king of France the king and queen of Spain. But for a long time nobody cared to listen to such a wild and foolish and dangerous plan--to go to Cathay by the way of the Sea of Darkness and the Jumping-off place. You would never get there alive, they said. And so Columbus waited. And his hair grew white while he waited, though he was not yet an old man. He had thought and worked and hoped so much that he began to look like an old man when he was forty years old. But still he would never say that perhaps he was wrong, after all. He said he knew he was right, and that some day he should find the Indies and sail to Cathay. CHAPTER II. WHAT PEOPLE THOUGHT OF THE IDEA. I do not wish you to think that Columbus was the first man to say that the earth was round, or the first to sail to the West over the Atlantic Ocean. He was not. Other men had said that they believed the earth was round; other men had sailed out into the Atlantic Ocean. But no sailor who believed the earth was round had ever yet tried to prove that it was by crossing the Atlantic. So, you see, Columbus was really the first man to say, I believe the earth is round and I will show you that it is by sailing to the lands that are on the other side of the earth. He even figured out how far it was around the world. Your geography, you know, tells you now that what is called the circumference of the earth--that is, a straight line drawn right around it--is nearly twenty-five thousand miles. Columbus had figured it up pretty carefully and he thought it was about twenty thousand miles. If I could start from Genoa, he said, and walk straight ahead until I got back to Genoa again, I should walk about twenty thousand miles. Cathay, he thought, would take up so much land on the other side of the world that, if he went west instead of east, he would only need to sail about twenty-five hundred or three thousand miles. If you have studied your geography carefully you will see what a mistake he made. It is really about twelve thousand miles from Spain to China (or Cathay as he called it). But America is just about three thousand miles from Spain, and if you read all this story you will see how Columbus's mistake really helped him to discover America.