Bulfinch's Mythology The Age of Fable
Page: 61While Cadmus stood over his conquered foe, contemplating its vast size, a voice was heard (from whence he knew not, but he heard it distinctly), commanding him to take the dragon's teeth and sow them in the earth. He obeyed. He made a furrow in the ground, and planted the teeth, destined to produce a crop of men. Scarce had he done so when the clods began to move, and the points of spears to appear above the surface. Next helmets, with their nodding plumes, came up, and next, the shoulders and breasts and limbs of men with weapons, and in time a harvest of armed warriors. Cadmus, alarmed, prepared to encounter a new enemy, but one of them said to him, "Meddle not with our civil war." With that he who had spoken smote one of his earth-born brothers with a sword, and he himself fell pierced with an arrow from another. The latter fell victim to a fourth, and in like manner the whole crowd dealt with each other till all fell slain with mutual wounds except five survivors. One of these cast away his weapons and said, "Brothers, let us live in peace!" These five joined with Cadmus in building his city, to which they gave the name of Thebes.
Cadmus obtained in marriage Harmonia, the daughter of Venus. The gods left Olympus to honor the occasion with their presence, and Vulcan presented the bride with a necklace of surpassing brilliancy, his own workmanship. But a fatality hung over the family of Cadmus in consequence of his killing the serpent sacred to Mars. Semele and Ino, his daughters, and Actaeon and Pentheius, his grandchildren, all perished unhappily; and Cadmus and Harmonia quitted Thebes, now grown odious to them, and emigrated to the country of the Enchelians, who received them with honor and made Cadmus their king. But the misfortunes of their children still weighed upon their minds; and one day Cadmus exclaimed, "If a serpent's life is so dear to the gods, I would I were myself a serpent." No sooner had he uttered the words than he began to change his form. Harmonia beheld it, and prayed to the gods to let her share his fate. Both became serpents. They lie in the woods, but mindful of their origin they neither avoid the presence of man nor do they ever injure any one.
There is a tradition that Cadmus introduced into Greece the letters of the alphabet which were invented by the Phoenicians. This is alluded to by Byron, where, addressing the modern Greeks, he says:
"You have the letters Cadmus gave,
Think you he meant them for a slave?"
Milton, describing the serpent which tempted Eve, is reminded of the serpents of the classical stories, and says,
The "god in Epidaurus" was AEsculapius. Serpents were held sacred to him.