Visual propaganda during WWII helped to get housewives into the workforce. The iconic image of J. Howard Miller's "We Can Do It" is often confused with Norman Rockwell's cover "Rosie the Riveter." Norman Rockwell's cover of Rosie was inspired by Michaelangelo's depiction of Isaiah on the ceiling mural of the Sistine Chapel. Rockwell added much symbolism in his cover including the robust arms of Rosie, and the Hitler magazine underneath her foot. A link to a very enlightening video by the Library of Congress on You Tube explains the symbolism.
http://www.youtube.com/watch?v=04VNBM1PqR8