voluntary health agency Margaret Sanger American Birth Control League 1921 http://www.isni.org/0000000096736776 https://en.wikipedia.org/wiki/American_Birth_Control_League https://viaf.org/viaf/143002408/ https://www.wikidata.org/wiki/Q463569 ABCL An organization founded by Margaret Sanger in 1921 at the First American Birth Control Conference in New York City. The organization promoted the founding of birth control clinics and encouraged women to control their own fertility. In 1942, the league became the Planned Parenthood Federation of America. Planned Parenthood Federation of America