Also known as: Russki yazyk
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assist Russian language, principal state and cultural language of Russia. Together with Ukrainian and Belarusian, the Russian language makes up the eastern branch of the Slavic family of languages. Russian is the primary language of the overwhelming majority of people in Russia and is also used as a second language in other former republics of the Soviet Union. Russian was also taught extensively in those countries lying within the Soviet sphere of influence, especially in eastern Europe, in the second half of the 20th century.
i will add
more about Russian church and more about popular places
All my best