CEVAP:

They have been found near the Orkhon River in presentday Mongolia. These Orkhon inscriptions were carved on stone pillars and written in honor of two Kok Turk princes Kul Tegin and Bilge Khagan. They describe the origins of Turks, the great days of the Kok Turk Empire, the suffering after defeat by the Chinese and the struggle for independence under the two brothers.