Russian literature has a long history dating back to the Middle Ages, with roots in the composition of epics and chronicles in Old Russian. The 18th century saw the rise of an enlightenment period and the 19th century was considered a golden age of Russian poetry and prose, including the works of Pushkin, Gogol, Turgenev, Tolstoy, and Dostoyevsky. The 20th century was marked by the 1917 Russian Revolution which split Russian literature into Soviet and émigré parts, though some authors achieved success under socialist realism within the USSR. The late 20th century saw few distinct voices until new authors emerged in the 21st century.