Xerxes, son of Darius, succeeded him on the throne. This new monarch was the handsomest and stateliest man in all his army. But his fair outside covered a weak nature; timid, faint-hearted, vain, conceited, he was not the man to conquer Greece, small as it was and great as was the empire under his control; and the death of Darius was in all probability the salvation of Greece.
Xerxes succeeded not only to the throne of Persia, but also to the vast army which his father had brought together. He succeeded, moreover, to a war, for Egypt was in revolt. But this did not last long; the army was at once set in motion, Egypt was quickly subdued, and the Egyptians found themselves under a worse tyranny than before.
Greece remained to conquer, and for that enterprise the timid Persian king was not eager. Marathon could not be forgotten. Those fierce Athenians who had defeated his father's great host were not to be dealt with so easily as the unwarlike Egyptians. He held back irresolute, now persuaded to war by one councillor, now to peace by another, and finally—so we are told—driven to war by a dream, in which a tall, stately man appeared to him and with angry countenance commanded him not to abandon the enterprise which his father had designed. This dream came to him again the succeeding night, and when Artabanus, his uncle, and the advocate of peace, was made to sit on his throne and sleep in his bed, the same figure appeared to him, and threatened to burn out his eyes if he still opposed the war. Artabanus, stricken with terror, now counselled war, and Xerxes determined on the invasion of Greece.
This story we are told by Herodotus, who told many things which it is not very safe to believe. What we really know is that Xerxes began the most stupendous preparations for war that had ever been known, and added to the army left by his father until he had got together the greatest host the world had yet beheld. For four years those preparations, to which Darius had already given three years of time, were actively continued. Horsemen 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 B.C. 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 Crœsus. 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 the fleet of Mardonius off the stormy cape of Mount Athos, and determined to avoid this danger. A narrow neck of land connects Mount Athos with the mainland. Xerxes ordered that a ship-canal should be cut through this isthmus, wide and deep enough to allow two triremes—war-ships with three ranks of oars—to sail abreast.
This work was done by the Phœnicians, the ablest engineers at that time in the world. A canal was made through which his whole fleet could sail, and thus the stormy winds and waves which hovered about Mount Athos be avoided.
This work was successfully done, but not so the bridge of boats. Hardly had the latter been completed, when there came so violent a storm that the cables were snapped like pack-thread and the bridge swept away. With the weakness of a man of small mind, on hearing of this disaster Xerxes burst into a fit of insane rage. He ordered that the heads of the chief engineers should be cut off, but this was far from satisfying his anger. The elements had risen against his might, and the elements themselves must be punished. The Hellespont should be scourged for its temerity, and three hundred lashes were actually given the water, while a set of fetters were cast into its depths. It is further said that the water was branded with hot irons, but it is hard to believe that even Xerxes was such a fool as this would make him.
The rebellious water thus punished, Xerxes regained his wits, and ordered that the bridge should be rebuilt more strongly than before. Huge cables were made, some of flax, some of papyrus fibre, to anchor the ships in the channel and to bind them to the shore. Two bridges were constructed, composed of large ships laid side by side in the water, while over each of them stretched six great cables, to moor them to the land and to support the wooden causeway. In one of these bridges no less than three hundred and sixty ships were employed.