Most often 1991 as a year of Ukrainian independence is considered as a start of the contemporary Ukrainian literature as from that year on the literary censorship of the Soviet Union ceased to exist and writers were able to deviate from the official socialist realism style. Principal changes took place in Ukrainian literature already in the years of Perestroika (1985) and especially after the Chernobyl disaster. Some researchers consider that contemporary Ukrainian literature started from the 1970s after the generation of the sixtiers.