Orhon (or Orkhon) inscriptions are the oldest known Turkish writings, which were erected near the Orhon
? river (between 732-735 AD) in honour of two Kokturk
? princes
Kul and
Bilge. They have been carved on two monuments by old Turkish runes (see
Old Turkic alphabet), which were deciphered by the Danish philologist [Vilhelm Thomsen]
? in 1893.