Monograph of Vyacheslav Kotigoroshka, Doctor of Historical Sciences, Professor of Uzhgorod National University, is devoted to the history of the ancient population of Upper Potiss, from the Stone Age (1 million years ago) to the Middle Ages (X century AD). The book examines the development of the economy, culture and social structure of the tribes of the region, analyzes the problems of origin, interconnections and historical destinies of carriers of archaeological cultures and ethnic groups.