"Receiving the title of Professor by K. T. Tynystanov in 1936"
E. D. Polivanov, in particular, supported the hypothesis of the Yenisei origin of the Kyrgyz, linking this to the absence in Central Asia of another Turkic language specifically close to Kyrgyz. At the same time, the author speaks of the numerous ethnic components of the Kyrgyz nationality—both migratory and local, from the Tian Shan region. The scholar clarifies: “When speaking here (and below) about the linguistic ancestors of the Kyrgyz (whom I assume to be the authors of the Yenisei