Hippodamus of Miletus (sometimes also called Hippodamos), was a Greek architect of the 5th century BC. It was he who introduced order and regularity into the planning of cities, in place of the previous intricacy and confusion.

For Pericles he planned the arrangement of the harbour-town Peiraeus at Athens. When the Athenians founded Thurii in Italy he accompanied the colony as architect, and afterwards, in 408 BC, he superintended the building of the new city of Rhodes.

His schemes consisted of series of broad, straight streets, cutting one another at right angles.

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