Cadmus
Son of Agenor, king of Phoenicia, and Telephassa, or Agriope, was ordered by his father to go in quest of his sister Europa, whom Jupiter had carried away. His search proving fruitless, he consulted the oracle of Apollo, and was told to build a city where he saw a heifer stop in the grass, and call the country around Boeotia. He found the heifer, as indicated by the oracle. Requiring water, he sent his companions to fetch some from a neighboring grove. The water was guarded by a dragon, who devoured those who were sent for it, and Cadmus, tired of waiting, went himself to the place. He attacked the dragon and killed it, sowing its teeth in the ground, on which a number of armed men rose out of the earth. Cadmus threw a stone among them, and they at once began fighting, and all were killed except five, who assisted him in building the city. Cadmus introduced the use of letters in Greece-the alphabet, as introduced by him, consisting of sixteen letters.