1776
1848
1869
1870
1878
1887
1916
1920
1923
1925
1932
1952
1972
2007
2008
March 31, 1776: Abigail Adams writes to husband John Adams to "remember the ladies" in the new code of laws.
July 19-20, 1848: First Women's Rights Convention in Seneca Falls NY publishes Declaration of Sentiments.
May, 1869: National Woman Suffrage Association & American Woman Suffrage Association formed.
February 3, 1870: 15th Amendment is ratified giving the right to vote to all citizens, regardless of color or race, but women are not mentioned.
January 10, 1878: Woman suffrage amendment first introduced in US Congress.
April 4, 1887: Susanna Medora Salter becomes the first woman elected mayor of an American town, in Argonia, Kansas.
November 6, 1916: Jeannette Rankin, of Montana, is the first woman to be elected to the U.S. House of Representatives.
August 26, 1920: 19th Amendment, called the Susan B. Anthony Amendment, is signed into law, giving women the right to vote.
July 20, 1923: Equal Rights Amendment is proposed by Alice Paul to remedy inequalities not addressed in the 19th Amendment.
January 5, 1925: Nellie Tayloe Ross becomes the first woman to serve as governor of a state, in Wyoming succeeding her deceased husband.
January 12, 1932: Hattie Wyatt Caraway, of Arkansas, becomes the first woman elected to the U.S. Senate.
July, 1952: Democratic and Republican parties eliminate women's divisions.
March 22, 1972: After nearly 50 years, Equal Rights Amendment passes both houses and is signed by President Richard Nixon. It is never ratified.
January 3, 2007: Nancy Pelosi (D-California) becomes the first woman Speaker of the House of Representatives.
January 8, 2008: Hillary Clinton wins the New Hampshire Democratic presidential primary, becoming the first woman in U.S. history to win a presidential primary contest.

Suffrage got women the vote; Dames get women elected.