During the period of the First Five-Year Plan and in the early period of the Second Five-Year Plan, heavy industry ranked first, followed by light industry and agriculture, in China's national economic plan. In the early days of the Lushan Meeting held in 1959, Mao Zedong pointed out that, ``In the past, heavy industry ranked first, then light industry and agriculture. Now we should reverse the order and put agriculture first and then light industry and heavy industry''. ``Heavy industry'', he added, ``should serve light industry and agriculture.''