○○○ 0882 ⪢⪢
In 882, his heir Oleg leaves with an army and conquers Smolensk and Kiev. He then founds the Kievan Rus' of which he becomes prince. The new state includes mainly Slavic and Finnish tribes.
http://qindex.info/i.php?x=6561

○○○ 0972 ⪢⪢
But the Khazar Kingdon, weakened, no longer holds back the nomadic tribes of Central Asia which come to settle in the South of the Kievan Rus'. Among them are the Pechenegs who in 972 kills Sviatoslav during an ambush.
http://qindex.info/i.php?x=6877

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