To know the main periods, works and linguistic features of the Turkish language in the historical development of the Turkish language; To know the linguistic features of the Orkhon, Uighur and Karakhanid periods, which are among the historical periods of Turkish, and to know the relationship between these historical periods.

Language families, theory of Altaic languages, periodic language features of Old Turkish, Orhon Turkish, Uyghur Turkish and Karahanli Turkish and introduction of the works written in this period.