Uyghurs
Rian Thum explored the concepts of identity among the ancestors of the modern Uyghurs in Altishahr (the native Uyghur name for eastern Turkestan or southern Xinjiang) before the adoption of the name "Uyghur" in the 1930s, referring to them by the name "Altishahri" in his article "Modular History: Identity Maintenance before Uyghur Nationalism". Thum indicated that Altishahri Turkis did have a sense that they were a distinctive group separate from the Turkic Andijanis to their west, the nomadic Turkic Kirghiz, the nomadic Mongol Qalmaq, and the Han Chinese Khitay before they became known as Uyghurs. There was no single name used by them to refer to themselves, the various native names Altishahris used to refer to themselves were Altishahrlik (Altishahr person), yerlik (local), Turki, and Musulmān (Muslim), the term Musulmān in this situation did not signify religious connotations, because the Altishahris would exclude other Muslim peoples like the Kirghiz when referring to themselves as Musulmān. Dr. Laura J Newby has also noted that the sedentary Altishahri Turkic people felt themselves as a separate group from other Turkic Muslims since at least the 19th century.
Uyghurs
Discovery of well-preserved Tarim mummies of a people European in appearance indicates the migration of an Indo-European people into the Tarim area at the beginning of the Bronze age around 1800 BCE. These people probably spoke Tocharian languages and were suggested by some to be the Yuezhi mentioned in ancient Chinese texts. However, Uyghur activists claimed these mummies to be of Uyghur origin, based partly on a word, which they argued to be Uyghur, found in written scripts associated with these mummies, although other linguists suggest it to be a Sogdian word later absorbed into Uyghur. Later migrations brought peoples from the west and north-west to the Xinjiang region, probably speakers of various Iranian languages such as the Saka tribes. Other people in the region mentioned in ancient Chinese texts include the Dingling as well as the Xiongnu who fought for supremacy in the region against the Chinese for several hundred years. Some Uyghur nationalists also claimed descent from the Xiongnu (according to the Chinese historical text the "Book of Wei", the founder of the Uyghurs was descended from a Xiongnu ruler), but the view is contested by modern Chinese scholars.