Women's Equality Day is celebrated to commemorate the 1920 adoption of the Nineteenth Amendment (Amendment XIX) to the US Constitution, which prohibits the states and the federal government from denying the right to vote to citizens of the United States on the basis of sex.
Ida B. Wells, was an African-American investigative journalist, educator, and an early leader in the Civil Rights Movement. She was one of the founders of the National Association for the Advancement of Colored People (NAACP). She arguably became the most famous black woman in America, during a life that was centered on combating prejudice, violence and women's rights and the women's suffrage movement, establishing several notable women's organizations.