Note 2 — Chapter I · EARLY HISTORY OF RUSSIA
Reading edition
In Kief Oleg fixed himself firmly, declaring that thenceforth it should be called the mother of Russian towns. His first care was to build fortifications in the new territory, both to secure his own power and to defend the country from the Asiatic tribes of the steppes. He spent nearly thirty years, however, in gaining authority over tribes south, east and west of the new capital, before he felt strong enough to make an attack on Tsargrad.2