Two suffragists, identified as "Mrs. Stanley McCormick and Mrs. Charles Parker," hold a National Woman Suffrage Association banner at an April 1913 rally.
Since 1987, the month of March has been recognized as National Women's History Month in the United States.
A time to study and celebrate women's history, National Women's History Month began in 1978 as Women's History Week in Sonoma County, California. The Education Task Force of the county's Commission on the Status of Women scheduled this first observance for the week of March 8, specifically to include International Women's Day.
In 1981, Senator Orrin Hatch (R-UT) and Representative Barbara Mikulski (D-MD) introduced the Joint Congressional Resolution that turned Sonoma County's annual celebration into National Women's History Week. It was celebrated as such every March, during the week of International Women's Day, until 1986; at that point, the National Women's History Project successfully petitioned Congress to declare all of March National Women's History Month. In every year since then, March - by congressional resolution and presidential proclamation - has been Women's History Month."image & text from American Women's History Online
Origins of Women's History Month
Developed by the National Women's History Museum, this video provides a brief look at the history of the Women's History Month and International Womens' Day, March 8th.