Which religious traditions are represented in Old Uyghur manuscripts?

Old Uyghur manuscripts, preserved due to the dry climate of the Turfan region, reveal a complex and refined civilization in which multiple religious traditions coexisted. These manuscripts provide evidence of the following religious traditions:

• Buddhism: This tradition flourished in the region for many centuries, particularly under the patronage of the Uyghur Turks, and was practiced alongside other faiths.12
• Manichaeism: An Iranian dualistic religion that served as the state religion of the Uyghur kingdom until 840 CE. Manichaean scriptures, originally written in Syriac, were later rediscovered in the region.13
• Christianity: Specifically Nestorian Christianity, which penetrated the region and coexisted with other faiths.2

These manuscripts reflect a society where these traditions were practiced by Turks as well as by other groups, including Tocharians, Sogdians, and various Iranian peoples.1