sentences:  During the 1960s, he was very active at editing historical journals and mentoring younger Ukrainian historians, but a few years after his death in 1967, the Shelest Renaissance, which had briefly occurred under the protection of Ukrainian Communist Party leader, Petro Shelest, and had made possible so many of the cultural and academic achievements of the 1960s, came to an end (1972), and Krypiakevych's scholarly legacy was partly repressed.His monograph on the medieval Principality of Galicia-Volhynia only appeared posthumously in 1984.With the emergence of the Gorbachev reforms and Ukrainian independence, his major works from pre-Soviet times were reprinted and uncensored editions of certain of his Soviet-era works like "Bohdan Khmelnytsky" were published.