Original sentence: According to some theories, the population centers of the region, which may have included the proto-towns of Holmgard (Novgorod), Aldeigja (Ladoga), Lyubsha, Alaborg, Sarskoe Gorodishche, and Timerevo, were under the rule of a monarch or monarchs using the Old Turkic title Khagan.The Rus' Khaganate was a hypotetical polity that flourished during a poorly documented period in the history of Eastern Europe (roughly the late 8th and early to mid-9th centuries CE).. The polity's population at that time was composed of Slavic, Finnic, and Norse peoples, among which the dominant group was the Rus' tribe or tribes.The polity was also a center of operations for eastern Scandinavian (Varangian) adventurers, merchants and pirates
Edited sentence: A predecessor to the Rurik Dynasty and the Kievan Rus', the Rus' Khaganate was a state (or a cluster of city-states) in what is today northern Russia.According to contemporaneous sources, the population centers of the region, which may have included the proto-towns of Holmgard (Novgorod), Aldeigja (Ladoga), Lyubsha, Alaborg, Sarskoe Gorodishche, and Timerevo, were under the rule of a monarch or monarchs using the Old Turkic title Khagan.The Rus' Khaganate period marked the genesis of a distinct Rus' ethnos, and its successor states would include Kievan Rus' and later states from which modern Russia evolved.The Rus' Khaganate was a polity that flourished during a poorly documented period in the history of Eastern Europe (roughly the late 8th and early to mid-9th centuries CE).The region was also a center of operations for eastern Scandinavian (Varangian) adventurers, merchants and pirates.The region's population at that time was composed of Slavic, Finnic, and Norse peoples, among which the dominant group was the Rus' tribe or tribes