The Dunhuang star map of 700 AD. British Library Or.8210/S.3326 Ursa Major,Sagittarius and Capricornus are recognizable. The three colors (white, black and yellow) indicate the schools of astronomy of Shih Shen, Kan Te, and Wu Hsien.
Naxi (a.k.a. Nakhi, Naqxi, Nasi) belongs to the Yi branch of the Tibeto-Burman language family. About 300,000 people speak Naxi in China. The Naxi Dongba script was invented in the 13th century and used exclusively by the Dongba (shamans/priests) as an aid to the recitation of ritual texts during religious ceremonies and shamanistic rituals. There's efforts to revive the writing system in regional schools.