The one child policy instituted in China in 1979 aimed to control population growth through encouraging urban families to only have one child and imposing penalties for additional children. While largely ignored in rural areas, it created strong pressure in cities and led to issues like forced abortions and sterilizations. Exceptions existed but mostly maintained zero population growth. The policy disproportionately impacted females through sex-selective abortion and abandonment of girls. It reduced China's population but is criticized for its methods and lack of representation of the people's will.