. "The mythologies of the Turkic and Mongolic peoples are related and have exerted strong influence on one another. Both groups of peoples qualify as Eurasian nomads and have been in close contact throughout history, especially in the context of the medieval Turco-Mongol empire. The oldest mythological concept that can be reconstructed with any certainty is the sky god Tengri, attested from the Xiong Nu in the 2nd century BCE. Geser (Ges'r, Kesar) is a Mongolian religious epic about Geser (also known as Bukhe Beligte), prophet of Tengriism."@en . . "The mythologies of the Turkic and Mongolic peoples are related and have exerted strong influence on one another. Both groups of peoples qualify as Eurasian nomads and have been in close contact throughout history, especially in the context of the medieval Turco-Mongol empire. The oldest mythological concept that can be reconstructed with any certainty is the sky god Tengri, attested from the Xiong Nu in the 2nd century BCE. Geser (Ges'r, Kesar) is a Mongolian religious epic about Geser (also known as Bukhe Beligte), prophet of Tengriism. Among the oldest sources for Turkic religion and mythology are the Irk Bitig, a 10th-century manuscript found in Dunhuang, and the historian Movses Kaghankatvatsi describing the Huns of the Caucasus, also of the 10th century. besides epigraphic evidence of the Orkhon inscriptions of Mongolia and the Greek inscriptions of Madara."@en . . . . . "Mythology of the Turkic and Mongolian peoples"@en . . .