First Mother's Day celebrated in Philadelphia. Mme C.J. Walker, the first African American woman to become a millionaire in the United States, opens her corporate headquarters. In New York City, the Triangle Shirtwaist Company fire kills 146 workers, most of them women and children. March 8th is named International Women's Day. Juliette Low forms the first American Girl Guides, which becomes the Girl Scouts of America.
Women get the vote in Illinois.
Mother's Day is declared a National Holiday by President Woodrow Wilson. Lipstick is sold for the first time. The first birth control clinic is opened in Brooklyn. New York University admits women to the medical college. The League of women voters is founded in Chicago shortly thereafter.