Thirty years ago today, on February 15, 1995 (January 16, 1995), the population of the Chinese mainland reached 1.20 billion (except Taiwan, Hong Kong and Macao). The propagandists of the Guangzhou Family Planning Guidance Institute were promoting the knowledge of eugenics and eugenics. At 0:00 on February 15, 1995, the population of China reached 1.20 billion (excluding Taiwan, Hong Kong and Macao). China's family planning policy, which has been implemented nationwide since the 1970s, and the establishment of population control and improvement as basic national policies in the early 1980s, delayed the arrival of China's "1.20 billion Population Day" for nine years.