XERXES AND HIS ARMY. 137 the world had yet beheld. For four years those preparations, to which Darius had already given three years of time, were actively continued. Horse- men and foot-soldiers, ships of war, transports, provisions, and supplies of all kinds were collected far and near, the vanity of Xerxes probably inciting him to astonish the world by the greatness of his army. In the autumn of the year 481 Bc. this vast army, marching from all parts of the mighty empire, reached Lydia and gathered in and around the city of Sardis, the old capital of Croesus. Besides the land army, a fleet of twelve hundred and seven ships of war, and numerous other vessels, were collected, and large magazines of provisions were formed at points along the whole line of march. For years flour and other food, from Asia and Egypt, had been stored in cities on the route, that the fatal enemy starvation might not attack the mighty host. Two important questions occupied the mind of Xerxes. How was he to get his vast army on European soil, and how escape those dangers from storm which had wrecked his father’s fleet? He might cross the sea in ships, as Datis had done,— and be like him defeated. Xerxes thought it safest to keep on solid land, and decided to build a bridge of boats across the Hellespont, that ocean river now known as the Dardanelles, the first of the two straits which connect the Mediterranean with the Black Sea. As for the other trouble, that of storms at sea, he remembered the great gale which had wrecked 12*