The Mohammedans whom we haven’t heard of for a long time, had tried to capture Constantinople in the seventh century, but had been stopped, as I told you, by tar and pitch that the Christians poured down on them. But in 1458 the Mohammedans once again attacked Constantinople. This time, however, the Mohammedans were Turks, and they didn’t try to batter down the walls of the city with arrows. They used gunpowder and cannon. Cannon had been used at Crécy more than a hundred years before, but they had done little damage. Since that time, however, they had become greatly improved. Against the power of this new invention the walls of Constantinople could not stand, and finally the city fell. So Constantinople became Turkish, and the magnificent Church of Santa Sophia, which Justinian had built a thousand years before, was turned into a Mohammedan mosque. This was the end of all that was left of the old Roman Empire--the other half of which had fallen in 476. Ever after the downfall of Constantinople in 1453, wars were fought with gunpowder. No longer were castles of any use. No longer were knights in armor of any use. No longer were bows and arrows of any use--against this new kind of fighting. There was a new sound in the world, the sound of cannon-firing: “Boom! boom! boom!” Before this, battles had not been very noisy except for shouts of the victors and the moans of the dying. So 1453 is called the end of the Middle Ages, and the beginning of the New Ages that were to follow. Gunpowder had put an end to the Middle Ages. The invention of printing and that little magic needle, the compass, did a great deal to start the New Ages. 59 A Sailor Who Found a New World What book do you like best? “Alice in Wonderland”? “Gulliver’s Travels”? One of the first books to be printed and one that boys at that time liked best was “The Travels of Marco Polo” One of the boys who loved to read these stories of those far-away countries of the East with their gold and precious jewels was an Italian named Christopher Columbus. Christopher Columbus was born in the city of Genoa, which is in the top of the “boot.” Like a great many other boys who were born in seaport towns, he had heard the sailors on the wharves tell yarns of their travels, and his greatest ambition in life was to go off to sea and visit all the wonderful lands of which he had read and been told. At last the chance came, and, though only fourteen years old, he made his first voyage. After that, Columbus made many other voyages and grew to be a middle-aged man, but he never got to these countries he had read about in “The Travels of Marco Polo.” Many sea-captains of that time were trying to find a shorter way to India than the long and tiresome one that Marco Polo had taken. They felt sure there was a shorter way by sea and now that they had the compass to guide them they dared to go far off searching for such a waterway.