The two known dialects of Saka are associated with a movement of the
Scythians. No invasion of the region is recorded in Chinese records and one theory is that two tribes of the
Saka, speaking the two dialects, settled in the region in about 200 BC before the Chinese accounts commence. Michaël Peyrot (2018) rejects a direct connection with the "Saka" (塞) of the Chinese
Hanshu, who are recorded as having immigrated in the 2nd century BC to areas further west in Xinjiang, and instead connects Khotanese and Tumshuqese to the long-established
Aqtala culture (also Aketala, in
pinyin) which developed since ca. 1000 BC in the region. The Khotanese dialect is attested in texts between the 7th and 10th centuries, though some fragments are dated to the 5th and 6th centuries. The far more limited material in the Tumshuqese dialect cannot be dated with precision, but most of it is thought to date to the late 7th or the 8th century. The Saka language became extinct after invading Turkic Muslims conquered the
Kingdom of Khotan in the
Islamicisation and Turkicisation of Xinjiang. In the 11th century, it was remarked by
Mahmud al-Kashgari that the people of Khotan still had their own language and script and did not know Turkic well. According to Kashgari some non-Turkic languages like the Kanchaki and
Sogdian were still used in some areas. It is believed that the Saka language group was what Kanchaki belonged to. It is believed that the Tarim Basin became linguistically Turkified by the end of the 11th century. == Old Khotanese phonology ==