is march women's international month
1 March 1, 1978 â Womenâs History Week is first observed in Sonoma County, California. 2  March 1, 1987 â Congress passes a resolution designating March as Womenâs History Month. 3  March 4, 1917 â Jeannette Rankin (R-MT) took her seat as the first female member of Congress.