(01 of19)
Open Image Modal (credit:Lewis W. Hine/Buyenlarge/Getty Images)
(02 of19)
Open Image ModalWomen workers in a garment factory, Vermont, circa 1915. (credit:Underwood Archives/Getty Images)
(03 of19)
Open Image ModalA group of women focus their attention on their work while employed by the Gibson Art Company of Cincinnati, Ohio, ca.1910s. (credit:Cincinnati Museum Center/Getty Images)
(04 of19)
Open Image ModalWomen operate the new stretching machine for surgical dressing at the Red Cross headquarters in Cincinnati, Ohio, circa 1915. The machine, which was invented by Milton Griffith, can stretch 28 bolts of gauze in one day. (credit:J. R. Schmidt/Paul Thompson/FPG/Getty Images)
(05 of19)
Open Image ModalA group of chorus girls at the annual charity reception and dance held by the Ladies\' Auxiliary of St Vincent\'s Hospital at the Waldorf-Astoria in New York, circa 1915. From left to right, Priscilla Mitchell, Dorothy Adrian, Temploe Joyner, Dorothy Kane, Dorothy Scully, Kathleen Kevin, Mary Lembeck, Helen McManus and Ruth Thompson. (credit:Paul Thompson/FPG/Hulton Archive/Getty Images)
(06 of19)
Open Image ModalA woman working in a munitions factory during World War One, aiding the war effort whilst the men are away, USA, circa 1914-1918. (credit:FPG/Getty Images)
(07 of19)
Open Image ModalA young woman works as a harness maker at the American Linen Company, in Fall River, MA, 1916. (credit:Lewis W. Hine/Buyenlarge/Getty Images)
(08 of19)
Open Image ModalA thirteen-year-old girl (identified only as Mary) works with her aunt as they make flowers in a tenement room, New York, New York, 1911. (credit:Lewis W. Hine/Buyenlarge/Getty Images)
(09 of19)
Open Image ModalView of women factory workers seated at their work stations while operating machines to polish lenses, during the early twentieth century. (credit:PhotoQuest/Getty Images)
(10 of19)
Open Image Modal29th May 1919: Women rivet heaters and passers on ship construction work in the Navy Yard at Puget Sound, Seattle, Washington. (credit:MPI/Getty Images)
(11 of19)
Open Image Modal (credit:Topical Press Agency/Hulton Archive/Getty Images)
(12 of19)
Open Image Modal (credit:PhotoQuest/Getty Images)
(13 of19)
Open Image Modal (credit:Paul Thompson/FPG/Getty Images)
(14 of19)
Open Image Modal (credit: Paul Thompson/FPG/Getty Images)
(15 of19)
Open Image Modal (credit:FPG/Hulton Archive/Getty Images)
(16 of19)
Open Image Modal (credit:FPG/Hulton Archive/Getty Images)
(17 of19)
Open Image Modal (credit:Bain News Service/Buyenlarge/Getty Images)
(18 of19)
Open Image Modal (credit:Vintage Images/ Getty Images)
(19 of19)
Open Image Modal (credit:Bain News Service/Buyenlarge/Getty Images)