The new book by Andrei Yuryevich Chernov, the author of numerous scientific articles and monographic studies, contains material that is extremely interesting for both historians and philologists. The facts discovered by Chernov regarding Rörik Jutland Oleg Veshchiy give unexpected coverage not only to the epoch-making events of Ancient Russia and the most important fragments of the Tale of Bygone Years, they relate to the key mythologies of Russian historical identity that have remained relevant for many centuries, including the Pushkin era.