With the unanimous approval of the Athenians, Theseus now ascended the vacant throne, and soon proved himself to be not only a valiant hero but also a wise prince and prudent legislator. Athens was at this time but a small city surrounded by a number of villages, each of which possessed its own separate form of government; but by means of kind and conciliatory measures Theseus induced the heads of these different communities to resign their sovereignty, and to intrust the administration of public affairs to a court which should sit constantly at Athens, and exercise jurisdiction over all the inhabitants of Attica. The result of these judicious measures was, that the Athenians became a united and powerful people, and that numbers of strangers and foreigners flocked to Athens, which became a flourishing maritime port and a commercial centre of great importance.
Theseus renewed the Isthmian Games, and also instituted numerous festivals, the principal of which was the Panathenæa, held in honour of Athene-Polias.
It is related that Theseus upon one occasion arrived during a voyage at the Amazonian coast. Anxious to ascertain the object of his visit, the Amazons sent Hippolyte, one of their number, with presents to the stranger; but no sooner did the fair herald set foot on board his vessel than Theseus set sail and carried her off to Athens, where he made her his queen. Enraged at this indignity the Amazons determined to be revenged. Some time afterwards, when the whole affair would
appear to have been forgotten, they seized the opportunity when the city of Athens was in a defenceless condition and landed an army in Attica. So sudden was their attack that they had penetrated into the very heart of the city before the Athenians could organize their forces; but Theseus expeditiously collected his troops and commenced such a furious onslaught upon the invaders that, after a desperate encounter, they were driven from the city. Peace was then concluded, whereupon the Amazons evacuated the country. During this engagement Hippolyte, forgetful of her origin, fought valiantly by the side of her husband against her own kinsfolk, and perished on the field of battle.
It was soon after this sad event that Theseus joined the world-renowned Calydonian Boar-hunt, in which he took a leading part. He also formed one of the brave band who shared in the perils of the Argonautic expedition.
The remarkable friendship which existed between Theseus and Pirithöus originated under such peculiar circumstances that it is worthy of mention.
Hearing upon one occasion that his herds, pasturing in the plains of Marathon, had been carried off by Pirithöus, Theseus collected together an armed force and sallied forth to punish the plunderer. But, when the two heroes met face to face, both were seized with an impulse of sympathetic admiration for each other. Pirithöus, holding out his hand in token of peace, exclaimed, "What satisfaction shall I render thee, oh Theseus? Be thou thyself the judge." Theseus seized the proffered hand and replied, "I ask nought save thy
friendship;" whereupon the heroes embraced each other and swore eternal fidelity.
When, soon afterwards, Pirithöus became united to Hippodamia, a Thessalian princess, he invited Theseus to the wedding-feast, which was also attended, among other guests, by a large number of Centaurs, who were friends of Pirithöus. Towards the end of the banquet Eurytion, a young Centaur, heated and flushed with wine, seized the lovely bride and sought by force to carry her off. The other Centaurs, following his example, each endeavoured to capture a maiden. Pirithöus and his followers, aided by Theseus, who rendered most valuable assistance, attacked the Centaurs, and after a violent hand-to-hand struggle in which many perished, forced them to relinquish their prey.