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
Khrushchev Thaw the Kremlin. The term was coined after Ilya Ehrenburg's 1954 novel "The Thaw "("Оттепель"), sensational for its time. The Khrushchev Thaw was highlighted by Khrushchev's 1954 visit to Beijing, People's Republic of China, his 1955 visit to Belgrade, Yugoslavia (with whom relations had soured since the Tito–Stalin Split in 1948), and his subsequent meeting with Dwight Eisenhower later that year, culminating in Khrushchev's 1959 visit to the United States. The Thaw initiated irreversible transformation of the entire Soviet society by opening up for some economic reforms and international trade, educational and cultural contacts, festivals, books by foreign authors, foreign movies,