Ruthenia
Medieval exonym for Rus'
Ruthenia is an exonym, originally used in Medieval Latin, as one of several terms for Rus'. The ethnonym Ruthenians was used to refer to the East Slavic and Eastern Orthodox people of the Grand Duchy of Lithuania and the Kingdom of Poland, and later the Polish–Lithuanian Commonwealth and Austria-Hungary, mainly to Ukrainians and sometimes Belarusians, inhabiting the territories of modern Belarus, Ukraine, Eastern Poland and some of western Russia. Historically, in a broader sense, the term was used to refer to all the territories under Kievan dominion (mostly East Slavs).
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