The American Birth Control League was founded in 1921 by Margaret Sanger to promote birth control and reproductive rights in the United States. The organization aimed to provide women with access to contraceptive information and services, advocating for the right to control their own bodies and family planning. In 1939, the league changed its name to the Planned Parenthood Federation of America. This shift marked a broader focus on reproductive health, education, and advocacy. The organization continues to play a significant role in promoting reproductive rights and providing health services to individuals across the country.