Why was the one child policy in China introduced?
There are approximately 1.3 billion reasons as to why the One Child Policy was introduced in China. The link below provides another link within its page, which describes the One Child Policy in detail, including how long it was supposed to be operational for (only temporary apparently) and who was responsible for its introduction – also when. Look for the blue link (one child policy) within the page. What you were looking for, I hope.