The first International Women's Day was celebrated on March 8, 1911. In 1980, President Carter extended the event into National Women's History Week; by 1987 the popularity had grown to the extent that both houses of Congress passed a law to extend the event further into a month-long celebration of women.
Numerous online sources have offered tips in researching your female ancestors. Here are are a few of my favorite:
1. In first place is Maureen Taylor, the "Photo Detective." In her blog for Family Tree Magazine, Taylor gives great advice especially regarding dating photographs by women's hairstyles, accessories (hats and jewelry) and clothing. Beyond the individuals themselves, Taylor suggests you consider possible events (weddings, anniversaries, holidays) and the other elements of the picture such as backdrop and furniture. Recently she blogged about clues regarding women's occupations.
2. Several news outlets have had articles on women's efforts in World War One including the New York Times, FirstWorldWar.com, the Imperial War Museum (UK), the BBC and the Smithsonian's National Museum of American History.
3. Family Tree Magazine is highlighting a Woman of the Day each day during the month on their Facebook page.
4. Finally the National Archives has a series of patented items marketed to women. Several of them are really funny!