Ancilla to the Pre-Socratic Philosophers: 39. Phaleas of Chalcêdôn and Hippodâmus of Milêtus 39. PHALEAS OF CHALCÊDÔN AND HIPPODÂMUS OF MILÊTUS Phaleas of Chalcêdôn: exact date unknown. Hippodâmus of Milêtus: active during the middle of the fifth century B.C. No writings survive.