Ukrainian historical thought of the seventeenth century is an interesting intellectual phenomenon, the genesis and social and cultural functioning of which took place against the background of political, geopolitical and interfaith confrontation in Eastern Europe. In Ukrainian historiography, this period of cultural and intellectual development was called “the first Ukrainian national and cultural revival”. Its characteristic feature was the growing interest of society in historical memory, in particular, in the memory of the Ancient Rus era as the origins of Rus-Ukraine, which is trying to find its place among other peoples of Europe. The question of reflecting the ancient n era in the historical thought of Ukraine in the late sixteenth − seventeenth centuries. in historiography it is elaborated in fragments, within the framework of side plots, at best, at the level of coverage of the views of individual authors (Feodosii Sofonovych, Inokentii Hizel, author of the Ukrainian Chronograph, some Polish writers, etc.). Among the monuments of historical thought of this tame period, the “Hustynskyi Litopys” attracts attention, the authorship of which is still the subject of discussion. The problem of authorship of the monument is quite old, but this issue has not been finally resolved. There is an assumption that y 20s of the seventeenth century. Zacharii Kopystenskyi worked on the chronicle. The list of Mykhailo Losytskyi, the hieromonk of the Hustyn monastery, made in 1670, is considered to be the final edition of the monument. This editing preserves the conceptual identity and consistency of presentation. The chronicle, despite its conceptual dependence on Polish literature, is based on its own concept, within substantiates the peculiarities of Rus' historical path among neighboring peoples, and explains the genesis of the Cossack factor, which became decisive in Eastern European politics of the sixteenth and seventeenth centuries. Ukrainian historical thought in the form of a chronicle of the 16−17th century needs further meticulous research.