In 1776, Abigail Adams warned her husband John to “remember the ladies” in the new system of laws that America would adopt. But although women played a critical role in America’s political life, they would not achieve the vote nationwide until almost 150 years later. In 1919, Congress finally approved the Nineteenth Amendment granting women suffrage throughout America. It was ratified in 1920, with Tennessee providing the necessary approval by one vote—after a mother lobbied her son in the state legislature on the amendment’s behalf.