USSR .
from eastern and southern Europe
Roman Catholicism has dominated Southern Europe since the Roman Empire adopted the religion of Christianity.
Slavic
Eastern Hemisphere
The Warsaw Pact.
An iron curtain.
There are hundreds of ethnic groups in Eastern Europe. The largest would have to be the Russians, the Ukrainians, the Romanians, the Greeks, and the Turks. Large immigrant ethnic groups would be such as Chinese, Afghani, Pakistani, and Indian.
Kievan Rus
vassal or celts
The Balto-Slavic language family.
the spanish dominated the 1500s
There are approximately 300 million Slavic people worldwide, primarily located in Eastern Europe and parts of Central Europe. The Slavic language group is one of the largest in the world, with diverse cultures and histories among its various subgroups.