Starting from the early 1930s, the Ukrainization policies were abruptly and bloodily reversed. "Ukrainian bourgeois nationalism" was declared to be the primary problem in Ukraine. Many Ukrainian newspapers, publications, and schools were switched to Russian. The vast majority of leading scholars and cultural leaders of Ukraine were purged, as were the "Ukrainianized" and "Ukrainianizing" portions of the Communist party. Major repression started in 1929–30, when a large group of Ukrainian intelligentsia was arrested and most were executed. In Ukrainian history, this group is often referred to as "Executed Renaissance" (Ukrainian: розстріляне відродження). The terror peaked in 1933 during the Holodomor, four to five years before the Soviet-wide "Great Purge", which, for Ukraine, was a second blow. The vast majority of leading scholars and cultural leaders of Ukraine were liquidated, as were the "Ukrainianized" and "Ukrainianizing" portions of the Communist party.