The long Trojan War appears to have been an epoch-making event in the medical and surgical history of those times, as was the Civil War recently in our country. Certain vague and indefinite practices then took more fixed form, and from that time on medicine may be said to have been furnished with a history. After the dethronement of Priam and the destruction of his capital, navigation was free and unrestricted. The Hellenists covered with their colonies both shores of the Mediterranean, and their navigators even passed the pillars of Hercules. By these means the worship of Æsculapius passed from Greece into what is now Asia, Africa, and Italy. In his temple at Epidaurus was a statue of colossal size made of gold and ivory. The dialogues of Plato, especially the Phædo, make it apparent that the cock was the animal sacrificed to him, and hence sacred to the god of medicine. The priests attached to{011} his worship were called _Asclepiacloe_, or descendants of Æsculapius. The temples were usually hygienically located near thermal springs or fountains and among groves. Pilgrimages were made from all quarters, and these localities became veritable health-resorts. A well-regulated dietary, pure air, temperate habits, and faith stimulated to a fanatical degree combined and sufficed for cures which even nowadays would be regarded as wonderful. The priests prescribed venesection, purgatives, emetics, friction, sea-baths, and mineral waters, as they appeared to be indicated. The imagination of the patient was continually stimulated, and at the same time controlled. Before interrogating the oracles they must be purified by abstinence, prayer, and sacrifice. Sometimes they were obliged to lie in the temple for one or more nights. The gods sometimes revealed themselves in mysterious ways, at times devouring the cakes upon the altars under the guise of a serpent, or again causing dreams which were to be interpreted by^the priests. There can be no doubt that sometimes, at least, the grossest frauds and the basest trickery were relied upon for the purpose of impressing the minds of those weakened by abstinence or influenced by drugs. Mercenary considerations were not lacking; moreover, cures were often not obtained until zeal had been redoubled by largely increased contributions to the treasury of the temples. In the neighborhood of many of these temples serpents abounded, non-venomous and easily tamed. These were employed by the priests in various supernatural performances by which the ignorant people were astonished and profoundly impressed. In fact, the serpent and the serpent-myth played a very large rôle in the early history of medicine as well as that of religion and religious symbolism.