Ukraine 450,000 ethnic Germans from Ukraine and more than 200,000 Crimean Tatars were victims of forced deportations. Following the death of Stalin in 1953, Nikita Khrushchev became the new leader of the USSR. Having served as First Secretary of the Communist Party of Ukrainian SSR in 1938–49, Khrushchev was intimately familiar with the republic; after taking power union-wide, he began to emphasize "the friendship" between the Ukrainian and Russian nations. In 1954, the 300th anniversary of the Treaty of Pereyaslav was widely celebrated. Crimea was transferred from the Russian SFSR to the Ukrainian SSR. By 1950, the republic had fully surpassed
Nikita Khrushchev rise in honor of the communist leaders who had died since the last congress, whom he named, equating Stalin with Klement Gottwald and the little-known Kyuichi Tokuda. In the early morning hours of 25 February, Khrushchev delivered what became known as the "Secret Speech" to a closed session of the Congress limited to Soviet delegates. In four hours, he demolished Stalin's reputation. Khrushchev noted in his memoirs that the "congress listened to me in silence. As the saying goes, you could have heard a pin drop. It was all so sudden and unexpected." Khrushchev told the delegates: The Secret Speech,