From the 3rd century until the 11th century, the region was invaded numerous times in turn by different tribes: Goths, Huns, Avars, Bulgars, Magyars, Pechenegs, Cumans and Mongols.
Nga shekulli i tretë deri në shekullin e 11-të, rajoni u pushtua shumë herë nga ana e fiseve të ndryshme: Goths, Huns, Avars, Bulgars, Hungarians, Pechenegs, Cumans and Mongols.