<prompt> Feleletša polelo ye e latelago: Pereiaslav o kgathile tema e bohlokwa historing ya Ukraine. E boletšwe la mathomo ka sengwalweng sa kwano ya Rus le Mmušo wa Byzantine 911 bjalo ka Pereyaslav-Ruskyi, go e hlaola go Pereyaslavets ka Bulgaria. Vladimir I, e lego Kgošana ya Kiev o ile a aga mo ka 992 sebo se segolo bakeng sa go šireletša mellwane ya ka borwa ya Kievan Rus go tšwa go ditlhaselo tša bafaladi ba go tšwa mašokeng a seo ga bjale e lego borwa bja Ukraine. Motse e be e le motse-mošate wa Principality of Pereiaslavl go tloga bogareng bja lekgolo la bo-11 la nywaga go fihla ge e phušolwa ke ma-Tatar ka 1239, nakong ya Ntwa ya Bohlabela le Bohlabela.  <response>: Tlhaselo ya Mamongolia go Kievan Rus. 