As our centennial series continues, Elaine Tyler May, professor emerita of American Studies and History at the University of Minnesota and the author of several books, including America And The Pill: A History of Promise, Peril, and Liberation (Basic Books, 2010) and Fortress America: How We Embraced Fear and Abandoned Democracy (Basic Books, 2017), reviews the history of birth control, from Margaret Sanger to Dobbs.