The term means that in a period of peace after war or social upheaval, the economy and population can recover and multiply. In practice it means the sovereign shall reduce taxes and conscript labor, support agriculture, allowing the population to procreate, life to return to normal, and society to recover. It first appeared as a governing strategy in the early Han Dynasty after the ravages of the wars with the previous Qin Dynasty. By the time the Han took over, the country was devastated and the population severely depleted. This policy allowed society to gradually recover and the nation to grow. From then on, “develop economy and increase population” became an important principle and policy of government throughout Chinese history. Sometimes it was instituted reluctantly because of specific circumstances, sometimes actively pursued as a manifestation of benevolent rule, sometimes a mixture of both. It is the concrete application of the social and political principle “the people are the foundation of the state.”