The book by Sergei Paramonov (Lesnoy is his pseudonym) “Where are you from, Rus'?” was published in the mid-60s in Canada with a circulation of only 2000 copies; in the USSR, during all these more than a quarter of a century, it was never reprinted. Moreover, in Soviet historiography it was kept silent for a long time, and then was subjected to unsubstantiated criticism. The work is devoted to the study of a little-studied period in the history of Ancient Rus' - pre-Olegov time. The author paid a lot of attention to the analysis of materials related to the so-called “Vlesovaya Book” - the chronicle of pagan Rus'. The scientist builds a concept of truly Slavic statehood and culture of Ancient Rus', proving the inconsistency of the Norman and other theories.