According to Charles Holcombe, the early Turk population was rather heterogeneous and many of the names of Türk rulers, including the two founding members, are not even Turkic. This is supported by evidence from the Orkhon inscriptions, which include several non-Turkic lexemes, possibly representing Uralic or Yeniseian words. Peter Benjamin Golden points out that the khaghans of the Turkic Khaganate, the Ashina, who were of an undetermined ethnic origin, adopted Iranian and Tokharian (or non-Altaic) titles, he also adds that this hypothesis assumes that they were not themselves lranian or Tokharian in speech. German Turkologist W.-E. Scharlipp points out that many common terms in Turkic are Iranian in origin. Whatever language the Ashina may have spoken originally, they and those they ruled would all speak Turkic, in a variety of dialects, and create, in a broadly defined sense, a common culture.