Izmir (Turkish: İzmir, greek Σμύρνη Smyrni, latin Smyrna) is a large metropolis in the western extremity of Anatolia and the third most populous city in Turkey. Izmir metropolitan area extends along the outlying waters of the Gulf of İzmir and inland to the north across Gediz River's delta, to the east along an alluvial plain created by several small streams and to a slightly more rugged terrain in the south. The ancient city was known as Smyrna, (Σμύρνη, Smyrne in Greek) and the city was generally referred to as Smyrna in English, until the Turkish Postal Services Law of 1930 made "Izmir" the internationally recognized name.