History of the Uyghur people
The history of the Uyghur people, as with the ethnic origin of the people, is an issue of contention between Uyghur nationalists and the Chinese authority. Uyghur historians viewed the Uyghurs as the original inhabitants of Xinjiang with a long history. Uyghur politician and historian Muhemmed Imin Bughra wrote in his book "A history of East Turkestan", stressing the Turkic aspects of his people, that the Turks have a 9000-year history, while historian Turgun Almas incorporated discoveries of Tarim mummies to conclude that Uyghurs have over 6400 years of history, and the World Uyghur Congress claimed a 4,000-year history. Chinese historians however generally traced the origin of the Uyghurs to the Tiele, some to the Dingling as well as other people mentioned in ancient Chinese texts such as the Guifang. Official Chinese view asserts the Uyghurs to be of Tiele origin, and only became the main social and political force in Xinjiang during the ninth century when they migrated to Xinjiang from Mongolia after the collapse of the Uyghur Khaganate, replacing the Han Chinese that they claimed were there since the Han Dynasty. Many modern Western scholars however do not consider the modern Uyghurs to be of direct linear descent from the old Uyghur Khaganate of Mongolia, rather they are descendants of a number of people, of which the ancient Uyghurs are but one.
Uyghurs
Another ethnicity, the Western Yugur of Gansu, have consistently been called by themselves and others the "Yellow Uyghur" ("Sarïq Uyghur"). Some scholars say that the Yugur's culture, language, and religion are closer to the original culture of the original Uyghur Karakorum state than is the culture of the modern Uyghur people of Xinjiang. Linguist and ethnographer S. Robert Ramsey has argued for inclusion of both the Eastern and Western Yugur and the Salar as subgroups of the Uyghur based on similar historical roots for the Yugur and on perceived linguistic similarities for the Salar. These groups are recognized as separate ethnicities, though, by the Chinese government.