text: Antoninus Liberalis reports that Periphas, and not this man, was the first to have his unusual manner of birth.
full_question: Antoninus Liberalis reports that Periphas, and not this man, was the first to have his unusual manner of birth. Polydore Vergil claims that this man raised the child who invented the quadriga. He introduced a new method of worshipping the gods in which cakes, rather than bloody animal sacrifices, were used as offerings. Some sources state he founded the towns of Tetrapolis, Epakria and Eleusis, and that he was a son of Pandion. In another story, this man's daughters Herse, Pandrosus, and Aglaurus opened a box, shrieked, and threw themselves off of a cliff, because they found this man's successor Erichthonius inside. This king judged a contest in which one of the participants planted an olive tree and the other used a trident to create a salty sea. For 10 points, name this autochthonous, half-serpent mythical founder of Athens.
first_sentence: Antoninus Liberalis reports that Periphas, and not this man, was the first to have his unusual manner of birth.
raw_answer: Cecrops