sentences:  In 440 BC he went out among the Athenian colonists and planned the new city of Thurium (later Thurii), in Magna Graecia, with streets crossing at right angles; as a consequence he is sometimes referred to as Hippodamus of Thurium.His principles were later adopted in many important cities, such as Halicarnassus, Alexandria and Antioch.Strabo credited the architect of Piraeus with the layout of the new city of Rhodes in 408 BC; however, as Hippodamus was involved in 479 BC with helping the reconstruction of Miletus he would have been very old when this project took place.