IT BECAME LAW THIS WEEK A HUNDRED YEARS AGO 

The 19th Amendment to the United States Constitution, guaranteeing American women the right to vote, celebrates a big birthday on Tuesday, as it was passed by both chambers of Congress 100 years ago on June 4, 1919. According to the National Archives, the House of Representatives first passed the amendment on May 21, 1919, and two weeks later, on June 4, the Senate followed with a vote of 56 to 25. The next year, following approval by three-fourths of state legislatures, the amendment was ratified into the Constitution.  

The opening of the Amendment's text reads, "The right of citizens of the United States to vote shall not be denied or abridged by the United States or by any state on account of sex. Congress shall have power to enforce this article by appropriate legislation." 

Photograph shows women lining up for parade; woman in front leading with baby and carriage; women, dressed in white and wearing sashes "Votes for women" carrying flags and banner.Suffrage parade, New York City, May 4, 1912LIBRARY OF CONGRESS

Since the 19th Amendment's passage, women have helped inaugurate a new era of American politics. In fact, many historians can point a clear line from the passage of the 19th amendment to the passage of Civil Rights legislation in the 1960s and the current movements seeking to offer greater federal protections for gay and transgender Americans.