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In page Ukraine:

"

Ukrainian literature has origins in Old Church Slavonic writings, which was used as a liturgical and literary language following Christianisation in the 10th and 11th centuries.[1][2][a] Other writings from the time include chronicles, the most significant of which was the Primary Chronicle.[citation needed] Literary activity faced a sudden decline after the Mongol invasion of Kievan Rus', before seeing a revival beginning in the 14th century, and was advanced in the 16th century with the invention of the printing press.[1]