Religion in Ukraine is a complicated tale. Since a 10th century conversion from Slavic paganism to Orthodox Christianity under the rule of the Kyivan Rus, Ukraine has remained quite firmly in the Eastern Orthodox sphere of religious influence. In more modern history, under Kruschev's anti-religion campaign, the Orthodox church and religious practice broadly were notably suppressed throughout the Soviet Union. Despite this, the Eastern Orthodox Church still survives in Ukraine today and represents the largest religious denomination in the country.