What is henan? How is it significant in the discussion of the one-child policy?

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.

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