Kucha or Kuche (also: Kuçar, Kuchar) Uyghur (كۇچار), Chinese Simplified: 库车; Traditional: 庫車; pinyin Kùchē; also romanized as Qiuzi, Qiuci, Chiu-tzu, Kiu-che, Kuei-tzu from the traditional Chinese forms 屈支 屈茨; 龜玆; 龟兹, 丘玆, also Po (bai in pinyin?); Sanskrit: Kucina, Standard Tibetan: Kutsahiyui was an ancient Buddhist kingdom located on the branch of the Silk Road that ran along the northern edge of the Taklamakan Desert in the Tarim Basin and south of the Muzat River. (The area lies in present day Aksu Prefecture, Xinjiang, China; Kuqa City itself is the county seat of that prefecture's Kuqa County). Its population was given as 74,632 in 1990.
Read more about Kucha: Etymology of Kucha, History, Archaeological Investigations, Kucha and Buddhism, Tocharian Languages, Neighbors, Kucha and The Kizil Caves, Timeline, Sources