Henan, a province in Central China’s Yellow River Valley, is widely recognized as the place where Chinese civilization originated. The one child policy significantly curbed population growth, though there is no consensus on the magnitude. Under the policy, households tried to have additional children without breaking the law; some unintended consequences include higher reported rates of twin births and more Han- minority marriages.
Inside these factories there sometimes were no good ventilation(no windows), many frequent accidents would happen and many children would start working very early maybe starting by the age of 6 yrs old if there parents weren't there to supervise them
