Historiography of Sakha ethno-genesis: reviewing the scientific hypotheses and versions

Historiography of the Sakha people's ethnogenesis study is more than three hundred years. Origin of Turkic-speaking cattle-breeders in the Far North was always of great interest for the foreign and home travelers. Pre-revolutionary historiography of the problem and folklore information together with oriental investigation was described in G. V. Ksenofontov's work «Uraangkhai sakhalar». Prominent scientists, famous turkologists V. V. Radloff, O. N. Bohtlingk, archeologist A. P. Okladnikov, ethnographers B. O. Dolgikh and S. A. Tokarev studied the Sakha people's ethnogenesis. Complex study of the theme was reflected in I. V. Konstantinov's and A. I. Gogolev's works which covered all complex of archaeological and ethnographic data on the Sakha people. The extensive historiography of the problem which includes the various tribal groups of Central Asia as ethnic ancestors of the Sakha allows use the various knowledge from the written sources. These data suppose the migrations of various ethnoses, bearers of ethnonyms Sakha - the Uraankhai, the Tumat, the Bootulu, the Bayağantai, the Khoro - from the territory of Baikal and South Siberia and their participation in the ethnogenesis of the Sakha people in the Middle Lena.