Answer:
During its history of 4000 years, China's population remained between 10 million and 20 million for the 1st 2000 years. In the Han dynasty, the figure increased to 59 million. At the beginning of the 17th century, the population decreased to between 10 million and 20 million because of war and social disorders. Overpopulation in China began after World War II in 1949, when Chinese families were encouraged to have as many children as possible in hopes of bringing more money to the country, building a better army, and producing more food.