FEW AMERICANS noticed the advertisement that appeared in the New York newspapers on May 1, 1915. Signed by the Imperial German Embassy in Washington, it reminded Americans that Germany was at war with Britain. It warned that British ships in the water near the British Isles were “liable to destruction,” and that “travelers sailing in the war zone on ships of Great Britain or her allies do so at their own risk.” That same day, the British steamship Lusitania sailed from New York and among the 1,250 passengers were 188 Americans. On May 6, when the Lusitania was off the …

Germany’s generals had for some time expected that they would have to fight both France and Russia, and Count Alfred von Schlieffen had devised a battle plan that took this into consideration. The Schlieffen Plan was a good one and it might well have brought the war to an early end — if General Helmut von Moltke, who succeeded Schlieffen as the German commander, had followed it. The plan called for the German army to be divided into an eastern force and a western force. Russia, vast and with few good roads or railroads, would need more time than France …

JUNE 28, 1914, was the Feast of Saint Vitus, an important holiday in Sarajevo, the capital of Bosnia. The city was decorated with flags displaying the two-headed eagle of the Austro-Hungarian Empire and a blazing sun shone down on the throngs of people in the streets. A small procession of four automobiles moved slowly along, making its way toward the city hall. In the second car, wearing a military helmet covered with green feathers, sat the old emperor’s heir Archduke Francis Ferdinand. He was Paying a state visit to this province of the empire he would one day inherit. Beside …

ALREADY HEMMED in on two sides by France and Russia, the Germans were dismayed to see Great Britain join their rivals. They feared that they would be surrounded by unfriendly powers and they decided to test the Entente Cordiale. They were anxious to find out how strong it was and how far Great Britain would go in backing up its new ally. The place they chose for the showdown was Morocco, where the French, now with the approval of the British, were policing large areas and taking over territory and rights. So, in March of 1905, a German warship suddenly …

AS THE year 1899 drew to a close, Europeans and Americans began to wonder when, exactly, the nineteenth century would end and the twentieth century begin. Most people thought that this would take place at midnight of December 31, 1899, but historians disagreed. They pointed out that the first hundred years after the birth of Christ had ended with the final seconds of the year 100. Therefore, they said, the twentieth century would not begin until January 1, 1901. As they toasted the new century that New Year’s Day most people in Europe and America were satisfied and hopeful. Life …

THE UNITED STATES entered the race for colonies last of all the powers, at the end of the nineteenth century. Long before then, however, Americans were accustomed to taking over territory; they had, in fact, built their country westward from the Atlantic by settling lands they had bought or seized. In the Mexican War of 1845-48 they had taken a huge tract of land from Mexico by force. Many Americans, including Abraham Lincoln believed that the Mexican War was simply an invasion of a weak country by its powerful, land hungry neighbour. Others maintained that the move was justified by …

THE MIDDLE EAST where Europe, Asia and Africa meet had long been known as one of the great crossroads of the world. Most of its people were Moslems, but among them were many Christians and Jews. They spoke languages as different as Arabic and Latin, Slavic and Turkish. They had little in common except that they were all subjects of the Ottoman sultan in Constantinople. The Ottoman Empire — so called after its early founder, Othman — was the last of several empires to rule over a large part of Islam. Unlike the earlier empires, it was dominated not by …

Africa, the second largest continent in the world, extends south from the Mediterranean Sea four thousand miles. Along its north coast is a strip of land known to Europeans since ancient times. South of this strip lie mountains and deserts. The Sahara, an empty “sea” of sand and rock, crosses the continent in a belt several hundreds of miles wide; it is hot and dry, vast and rugged. Europeans knew very little about the lands beyond it. Almost all they knew of Africa were the coasts, which they could reach by sea. As late as the time of the American …

The date was July 8, 1853; the place, Yedo, a sprawling collection of wooden houses overlooking an arm of the Pacific Ocean. Yedo, later known as Tokyo, was the chief city of the Japanese islands, off the east coast of Asia. It was larger than London or Paris, but since Japan had been out of touch with the rest of the world for centuries, few foreigners knew it. Yedo was also the residence of an official called the shogun, who theoretically governed the country in the name of the emperor. As they stared out at the bay that day, the …

China, that immense portion of East Asia bounded by the chilly Amur River and the hot jungles of Indo-China, by the Pacific Ocean and the Himalaya Mountains, was the most populous country on earth. For thousands of years, China had had a highly developed civilization. Its people thought of their land as the world itself; to them, it was the Middle Kingdom between the upper region, heaven and the lower region, hell, which was made up of all other lands. They considered foreigners nothing but barbarians. Only a few Europeans had entered China since the Middle Ages and the Chinese …