At the end of the X - middle of the XI centuries. Ancient Russia was subjected to raids by nomad tribes (Pechenegs, Torcs, Polovtsy.). This changed the course of the historical life of Russia and had a significant impact on the further fate of the entire Eastern Slavs. In his book, the famous Russian historian Pyotr Vasilyevich Golubovsky (1857-1907) talks about how the neighborhood of nomads influenced the political life of Ancient Russia, how relations between the Turks and Slavs developed. Based on the original source, the author considers the mutual tribal kinship and origin of the Pechenegs, Torcs and Polovtsy.