The earliest Turks mentioned in textual sources are the Xinli (薪犁), Gekun (鬲昆), and Tiele (鐵勒), the last of which possibly transcribes endonym "*Tegreg" "of the Carts", recorded by the Chinese in the 6th century. According to the "New Book of Tang", Tiele is just a mistaken form of Chile/Gaoche, who themselves are related to Xiongnu and Dingling. Many scholars believe the Di, Dili, Dingling, and later Tujue mentioned in textual sources are all just Chinese transcriptions of the same Turkic word "türk", yet Golden proposes that "Tujue" transcribed *"Türküt" while "Dili", "Dingling", "Chile", "Tele", & "Tiele" transcribed *"Tegreg".