Final answer:
The exact date when birth control pills were approved for use in Japan. In the U.S., birth control pills were approved in 1960, and the topic has been historically controversial and tied to women's rights and population control discussions.
Step-by-step explanation:
The United States, the birth control pill was approved in 1960 and had a significant impact on society. Understanding when Japan followed suit would require additional research, but historically, Japan has had complex attitudes towards reproduction and women's health, as reflected in the National Eugenics Law of 1940 and cultural practices around pregnancy and childbirth. The debate surrounding birth control and its implications for society have been global, with various countries grappling with issues related to contraception, women's rights, and population control.