Kievan Rus was a loose federation of East Slavic and Finnic peoples in Europe from the late ... He extended his control from Novgorod south along the Dnieper river valley to protect trade from Khazar incursions ... In the south, in the area around Kiev, were the Poliane, a group of Slavicized tribes with Iranian origins
The "lost city" of Pompeii was an amazing disclosure in 1738. From that point forward, a huge number of visitors have set out to Italy to see this mind blowing disclosure of a city finished covered in fiery debris very nearly 2000 years back. The essential concern confronting students of history and archeologists today is saving this site and protec±ng it from visitors and the components.
The answer is tectonic plates
Water vapor argon carbon dioxide