Tonyukuk inscriptions - Credit: Wikimedia Commons
The Tonyukuk inscriptions (), also called the Bain Tsokto inscriptions are Turkic inscriptions of the 8th century located in Nalaikh, Ulaanbaatar, Mongolia. They are the oldest written attestations of the Turkic language family, predating the Orkhon inscriptions (Khöshöö Tsaidam monuments) by several years. Read more on Wikipedia
Source: en.wikipedia.org