Ephesus (/ˈɛfəsəs/; Greek Ἔφεσος, Ephesos; Turkish Efes) was an ancient Greek city, and later a major Roman city, on the west coast of Asia Minor, near present-day Selçuk, Izmir Province, Turkey. It was one of the twelve cities of theIonian League during the Classical Greek era. In the Roman period, Ephesus had a population of more than 250,000 in the 1st century BC, which also made it one of the largest cities in the Mediterranean world.