her a most important possession, the city of Potidæa, on the gulf of Thermæ. This, too, he gave up to the Olynthians. Pydna, also, on the shore of the same gulf, opposite to Potidæa, likewise an Athenian possession, fell into his hands through internal treachery; and Athens, it appears, made no effort to save the place. Thus, in a single year, 358 B.C., Philip gained three most valuable positions on the coast, and a severe shock was given to Athenian influence in the north of the Ægean. He had hitherto been poor; now he had the means of raising an ample revenue. Master of Amphipolis, he had free access to the gold region in the neighbourhood east of the Strymon. Here he founded the city which we know by the familiar name of Philippi. He had now a well-organised army, and he was able to maintain it. In little more than two years he had immensely increased the strength and resources of his kingdom. But it was not till six years afterwards that Macedon was felt to be a distinct menace to the Greek world.
