General Secretary of the Communist Party of the Soviet Union more than determine party membership composition. Stalin, its first incumbent, used the principles of democratic centralism to transform his office into that of party leader, and later leader of the Soviet Union. In 1934, the 17th Party Congress refrained from formally re-electing Stalin as General Secretary. However, Stalin was re-elected into all other positions and remained leader of the party without diminishment. In the 1950s, Stalin increasingly withdrew from Secretariat business, leaving the supervision of the body to Georgy Malenkov, possibly to test him as a potential successor. In October 1952, at the 19th Party Congress, Stalin restructured the party's
History of the Soviet Union (1953–64) Khrushchev became premier on March 27, 1958, consolidating his power—the tradition followed by all his predecessors and successors. This was the final stage in the transition from the earlier period of post-Stalin collective leadership. He was now the ultimate source of authority in the Soviet Union, but would never possess the absolute power Stalin had. Aid to developing countries and scientific research, especially into space technology and weaponry, maintained the Soviet Union as one of the world's two major world powers. The Soviet Union launched the first ever artificial Earth satellite in history, Sputnik 1, which orbited the Earth in