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.
Uyghur nationalism
Uyghur independence activists express concern over the Han population changing the Uyghur character of the region, yet the historical native land of the Uyghurs is not the whole land of Xinjiang, but Tarim basin. Professor James A. Millward pointed out that the capital of Xinjiang Urumqi was even originally a Han and Hui (Tungan) city with few Uyghur people before recent Uyghur migration to the city, but foreigners mistakenly think that Urumqi was originally a Uyghur city and that the Chinese destroyed its Uyghur character and culture. Moreover, the Han and Hui mostly live in northern Xinjiang Dzungaria, and are separated from areas of historical Uyghur dominance south of the Tian Shan mountains (southwestern Xinjiang), where Uyghurs account for about 90% of the population. While a few people try to give a misportrayal of the historical Qing situation in light of the contemporary situation in Xinjiang with Han migration, and claim that the Qing settlements and state farms were an anti-Uyghur plot to replace them in their land, Professor James A. Millward pointed out that the Qing agricultural colonies in reality had nothing to do with Uyghur and their land, since the Qing banned settlement of Han in the Uyghur Tarim Basin and in fact directed the Han settlers instead to settle in the non-Uyghur Dzungaria and the new city of Urumqi, so that the state farms which were settled with 155,000 Han Chinese from 1760–1830 were all in Dzungaria and Urumqi, where there was only an insignificant amount of Uyghurs, instead of the Tarim Basin oases.