Slav farmers, hunters, and fisher settled on the waterways in the Norht European Plain in the 600s A.D. After a while the Slavs seperated. West Slavs were seperated into the Poles, Czechs, and Slovaks. South Slavs were seperated into the Bulgarians, Croats, Serbs, and Slovenes. The East Slavs seperated into the Russians, Ukrainians, and Belarugians.
World Geography by: Richard G. Boehm, Ph.D.