Uyghurs
Contemporary scholars consider modern Uyghurs to be the descendants of a number of people, including the ancient Uyghurs of Mongolia who arrived at the Tarim Basin after the fall of the Uyghur Khaganate, Iranic Saka tribes, and other Indo-European peoples who inhabited the Tarim Basin before the arrival of the Turkic Uyghurs. DNA analyses indicate that the peoples of central Asia such as the Uyghurs are all mixed Caucasian and East Asian. Uyghur activists identify with the Tarim mummies, remains of an ancient people who inhabited the region, but research into the genetics of ancient Tarim mummies and their links with modern Uyghurs remains problematic, both to Chinese government officials concerned with ethnic separatism, and to Uyghur activists concerned that the research could affect their people's claim of being indigenous to the region.
Oghur (tribe)
Five non-Oghur peoples passed through the area. The Huns are mentioned above. The Gokturks formed in Mongolia in 552, reached the Volga about 588 and raided Crimea in 577. They formed the Western Turkic Khaganate. As it weakened its western part contributed to the Khazars. The Avars were driven west by the Gokturks, briefly ruled the western steppe and moved on to Hungary about 580. They were also a mixed people and absorbed many Oghurs. Some time around 800 the Oghuz Pechenegs moved to the area west of the Khazars and the ancestral Hungarians passed through the area. The Oghur lands were later inhabited by the Kipchaks.