The pill helped give birth to modern America . Known by one simple word, the revolutionary oral contraceptive — approved by the U.S. Food and Drug Administration 66 years ago — didn’t just prevent innumerable pregnancies. It gave women new freedom, changing family life and society forever. “Its introduction in the 1960s afforded U.S. women this unprecedented control over their childbearing and subsequent life trajectories,” says Suzanne Bell of Johns Hopkins Bloomberg School of Public Health. The pill disentangled sex from procreation. Women no longer needed a man's cooperation to control their fertility. The pill’s greatest champion was a woman. Margaret Sanger, who founded the precursor to Planned Parenthood Federation of America, helped spearhead its development with financial support from her friend, philanthropist Katharine Dexter McCormick.…