From income tax to Prohibition, the Constitution underwent a lot
of change in the early 20th century, but perhaps none was more
important or positive than the 19th Amendment, which formally
granted women the right to vote. The women's-suffrage movement
in the U.S. dates as far back as the Revolutionary War, but
women's-rights trailblazers, such as Elizabeth Cady Stanton,
Susan B. Anthony and Lucretia Mott, spearheaded the strong push
for equal voting rights in the mid-19th century. After the
Seneca Falls Convention in 1848, the rallying cry for women's
right to vote became a yell too loud to ignore. In 1920 41 years
after it had originally been drafted Congress ratified an
amendment that said: "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." Although most of the pioneering
suffragettes died before winning the right to vote, to this day
every member of the fairer sex has them to thank.