East Turkestan

East Turkestan or East Turkistan (Uyghur: شەرقىي تۈركىستان, ULY: Sherqiy Türkistan, UKY: Шәрқий Туркистан), also called Uyghuristan (ئۇيغۇرىستان, Уйғуристан), is a loosely-defined geographical region in the northwestern part of the People's Republic of China, which varies in meaning by context and usage. The term was coined in the 19th century by Russian Turkologists, including Nikita Bichurin, who intended the name to replace the common Western term for the region, "Chinese Turkestan", which referred to the Tarim Basin in Southern Xinjiang or Xinjiang as a whole during the Qing dynasty. Beginning in the 17th century, Altishahr, which means "Six Cities" in Uyghur, became the Uyghur name for the Tarim Basin. Uyghurs also called the Tarim Basin "Yettishar," which means "Seven Cities," and even "Sekkizshahr", which means "Eight Cities" in Uyghur. Chinese dynasties from the Han dynasty to the Tang dynasty had called an overlapping area the "Western Regions".

Starting in the 20th century, Uyghur separatists and their supporters used East Turkestan as an appellation for the whole of Xinjiang (the Tarim Basin and Dzungaria) or for a future independent state in present-day Xinjiang Uyghur Autonomous Region. They reject the name Xinjiang (meaning "New Frontier" in Chinese) because of the Chinese perspective reflected in the name, and prefer East Turkestan to emphasize the connection to other, western Turkic groups.

The First East Turkestan Republic existed from November 12, 1933, to April 16, 1934, and the Second East Turkestan Republic existed between November 12, 1944, and December 22, 1949. East Turkestan is a founding member of the Unrepresented Nations and Peoples Organization (UNPO) formed in 1991, where it was represented by the World Uyghur Congress. In September 2004, the East Turkistan Government in Exile was established in Washington, D.C.