Beginning in 1949 at the founding of the People's Republic of China, the Central Committee gradually transformed from a revolutionary organ to a governing one, though again the day-to-day work and most political power resided with a few leaders, most notably the Politburo, then "de facto" chaired by Liu Shaoqi, and the Secretariat, then under Deng Xiaoping. Although the Central Committee was required to convene at least once a year, it did not convene at all in 1951–53, 1960, 1963–65, and 1967. Informal and 'extraordinary' mechanisms were sometimes used for the purposes of discussing party policy, for example, the Seven Thousand Cadres Conference in 1962, meant to be a summation of the lessons of the Great Leap Forward. Mao did not hold absolute power over the Central Committee, as evidenced by the debates surrounding the policies of the Great Leap Forward, as well as the economic policies of the early 1960s. However, Mao used Central Committee meetings as a platform to project authority or legitimize decisions which have been made in advance, such as at the Lushan Conference of 1959, when the Central Committee ratified the decision to denounce Peng Dehuai, who had spoken out in opposition of the Great Leap Forward.