himself as the loyal friend of Persia, and Darius was not disposed to be too critical. The Ionian ships came over. With a sense of immense relief the remnant of the wasted Persians were presently looking back at the steely flood of the Danube streaming wide between themselves and their pursuers....
The pleasure and interest had gone out of the European expedition for Darius. He returned to Susa, leaving an army in Thrace, under a trusted general Megabazus. This Megabazus set himself to the subjugation of Thrace, and among other states which submitted reluctantly to Darius was a kingdom, which thus comes into our history for the first time, the kingdom of Macedonia, a country inhabited by a people so closely allied to the Greeks that one of its princes had already been allowed to compete and take a prize in the Olympian games.
Darius was disposed to reward Histiæus by allowing him to build a city for himself in Thrace, but Megabazus had a different opinion of the trustworthiness of Histiæus, and prevailed upon the king to take him to Susa, and, under the title of councillor, to keep him a prisoner there. Histiæus was at first flattered by this court position, and then realized its true meaning. The Persian court bored him, and he grew homesick for Miletus. He set himself to make mischief, and was able to stir up a revolt against the Persians among the Ionian Greeks on the mainland. The twistings and turnings of the story, which included the burning of Sardis by the Ionians and the defeat of a Greek fleet at the battle of Ladé (495 B.C.), are too complicated to follow here. It is a dark and intricate story of treacheries, cruelties, and hate, in which the death of the wily Histiæus shines almost cheerfully. The Persian governor of Sardis, through which town he was being taken on his way back to Susa as a prisoner, having much the same opinion of him as Megabazus had, and knowing his ability to humbug Darius, killed him there and then, and sent on the head only to his master.
Cyprus and the Greek islands were dragged into this contest that Histiæus had stirred up, and at last Athens. Darius realized the error he had made in turning to the right and not to the left when he had crossed the Bosphorus, and he now set himself to the conquest of all Greece. He began with the islands. Tyre and Sidon were subject to Persia, and ships of the Phœnician and of the