[Planned Parenthood] Planned Parenthood Sign, ca. 1950"Planned Parenthood'' hand painted wood trade sign, mid 20th century. 7''h, 32 1 2''w. Soiled from use, with expected chipping and moderate paint loss. Margaret Sanger opened the first birth control clinic in the U. S. in 1916 and in 1921, founded the American Birth Control League, which changed its name to Planned Parenthood in 1942. Today, Planned Parenthood is made up of 159 medical and non medical affiliates, which operate more than 650 health