Margaret Sanger created groundbreaking policies in the area of women and children's health, particularly focusing on reproductive rights. As a nurse and activist, she played a crucial role in advocating for birth control education and access. Sanger founded the American Birth Control League, which later became Planned Parenthood, aiming to provide women with the means to make informed decisions about their reproductive health. Her work directly contributed to reshaping policies related to family planning and women’s health rights, establishing a foundation for reproductive justice.