Original sentence: According to the Primary Chronicle, the earliest chronicle of Kievan Rus′, a Varangian (Viking) named Rurik first established himself in Novgorod in about 860 before
Edited sentence: According to the Primary Chronicle, the earliest chronicle of Kievan Rus′, a Varangian (Viking) named Rurik first established himself in Novgorod, located in modern Russia (he was selected as common ruler by several Slavic and Finno-Ugric tribes) in about 860 before moving south and extending his authority to Kiev.In the early ninth they became loosely organized under the Rus' Khaganate, which may be regarded as a predecessor state to the Kievan Rus'.The Rus' people probably dominated what is now northwestern Russia since the eighth century