Under those circumstances you will understand that the sea did not attract the best elements of the population. Famous discoverers like Magellan and Columbus and Vasco da Gama travelled at the head of crews that were almost entirely composed of ex-jailbirds, future murderers and pickpockets out of a job. These navigators certainly deserve our admiration for the courage and the pluck with which they accomplished their hopeless tasks in the face of difficulties of which the people of our own comfortable world can have no conception. Their ships were leaky. The rigging was clumsy. Since the middle of the thirteenth century they had possessed some sort of a compass (which had come to Europe from China by way of Arabia and the Crusades) but they had very bad and incorrect maps. They set their course by God and by guess. If luck was with them they returned after one or two or three years. In the other case, their bleached bones remained behind on some lonely beach. But they were true pioneers. They gambled with luck. Life to them was a glorious adventure. And all the suffering, the thirst and the hunger and the pain were forgotten when their eyes beheld the dim outlines of a new coast or the placid waters of an ocean that had lain forgotten since the beginning of time. [Illustration: HOW THE WORLD GREW LARGER] Again I wish that I could make this book a thousand pages long. The subject of the early discoveries is so fascinating. But history, to give you a true idea of past times, should be like those etchings which Rembrandt used to make. It should cast a vivid light on certain important causes, on those which are best and greatest. All the rest should be left in the shadow or should be indicated by a few lines. And in this chapter I can only give you a short list of the most important discoveries. Keep in mind that all during the fourteenth and fifteenth centuries the navigators were trying to accomplish just _one thing_—they wanted to find a comfortable and safe road to the empire of Cathay (China), to the island of Zipangu (Japan) and to those mysterious islands, where grew the spices which the mediæval world had come to like since the days of the Crusades, and which people needed in those days before the introduction of cold storage, when meat and fish spoiled very quickly and could only be eaten after a liberal sprinkling of pepper or nutmeg.