Konya is a major city in central Turkey, on the southwestern edge of the Central Anatolian Plateau, and is the capital of Konya Province. During antiquity and into Seljuk times it was known as Iconium. In 19th-century accounts of the city in English its name is usually spelt Konia or Koniah. In the late medieval period, Konya was the capital of the Seljuk Turks' Sultanate of Rum, from where the sultans ruled over Anatolia. Today it is the spiritual centre of the Mevlevi Order, famous for its Whirling Dervishes.