Great Leap Forward took place between 1958 and early 1960 to organize its vast population, especially in large-scale rural communes, to meet China's industrial and agricultural problems. The Chinese hoped to develop labour-intensive methods of industrialization, which would emphasize manpower rather than machines.
All private farmland was collectivized and essentially all industry was nationalized. However, this led to massive famine and deaths as it did in the Soviet Union.
This had turned into a national disaster as about 20 million people were estimated to have died of starvation between 1959 and 1962 before it being repealed in early 1960.