2. The "Great Leap Forward" movement refers to the extremely "leftist" line campaign carried out by the Chinese Party nationwide between 1958 and 1960, which was launched on the basis of the Third Plenary Session of the Eighth Central Committee of the Communist Party of China (CPC) and its subsequent constant and erroneous criticism of the 1956 anti-advancement movement, and the "Great Leap Forward" movement. It was launched on the basis of the 1956 counter-advancement, and was a product of the "left" inclination.