Kievan Rus'

former federation of East Slavic tribes

ruined city-castle of Kievan Rus'

thumb|right|Sign in the Kaharlyk city park commemorated to the Torchesk city Torchesk (; ) was a medieval town, located between today's villages of Olshanytsia and Sharky in Kyiv Oblast (province) of central Ukraine near Kaharlyk.

Largest burial mound in Chernihiv, Ukraine

Kuyaba ( Kūyāba) was one of the three centers of the Rus or Saqaliba (early East Slavs) described in a lost book by Abu Zayd al-Balkhi (dating from ca. 920) and mentioned in works by some of his followers (Ibn Hawqal, Al-Istakhri, Hudud ul-'alam). The two other centers were Slawiya ( Ṣ(a)lāwiya) (tentatively identified with the land of Ilmen Slavs, see Rus' Khaganate) and Arthaniya ( ’Arṯāniya) (not properly explained).

old Rus castle near Urich, Ukraine