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
The Karakhanids converted to Islam in the tenth century beginning with Sultan Satuq Bughra Khan, the first Turkic dynasty to do so. Modern Uyghurs see the Muslim Karakhanids as an important part of their history, however, Islamization of the people of the Tarim Basin was a gradual process. The Indo-European Saka Buddhist Kingdom of Khotan was conquered by the Turkic Muslim Karakhanids from Kashgar in the early 11th century, but Uyghur Qocho remained mainly Buddhist until the 15th century, and the conversion of the Uyghur people to Islam was not completed until the 17th century.