Christopher Tadgell is an independent architectural historian based in Kent, England, UK, and author of Routledge’s seven-volume ‘Architecture in Context’ series. Author affiliation details are correct at time of print publication.
...Slavic tribes – threatened by Huns, Avars and Turks – accepted protection from Vikings (Rus’), whose forts, notably in Novgorod and Kiev, protected river trade between the Black Sea and Baltic. Oleg of Novgorod took Kiev in 882 and traded...