The Committee of Union and Progress (CUP) (Ottoman Turkish: إتحاد و ترقى جمعيتی‎, romanized: İttihad ve Terakki Cemiyeti), later the Union and Progress Party (Ottoman Turkish: إتحاد و ترقى فرقه‌ سی‎, romanized: İttihad ve Terakki Fırkası) was a secret revolutionary organization established as the society Committee of the Ottoman Union (Ottoman Turkish: İttihad-ı Osmanî Cemiyeti) in Constantinople (now Istanbul) on 6 February 1889 by a group of medical students of the Imperial Military School of Medicine. It would later be transformed into a political organisation and become the foremost faction in the Young Turks movement. In the West, the CUP was conflated with the wider Young Turk movement and its members were called Young Turks, while in the Ottoman Empire its members were known as İtti