Every March Women’s History Month honors and celebrates the contributions of women throughout United States history.

Last year’s Women’s History Month was the one hundred year anniversary of suffragists marching on Washington to promote women’s rights. In recognition of the anniversary, the National Archives created a Pinterest board where you can view photos, letters, a cartoon, and other documents from that period.

National Women’s History Week began in 1981, and the official month was recognized by Congress in 1987.

Learn more at WomesHistoryMonth.gov.