Though May Day doesn't mean much in the United States, across most of the world, it's a labor-centric holiday with demonstrations by unions and other workers' groups. In honor of this first day of May, I decided to do a little research about some of history's great ladies of the labor movement. Test your muscle by taking my quiz.
Source: Flickr User Mariana Mansur
May Day! What Do You Know About Ladies of Labor?
Where did Rose Will Monroe, the inspiration behind "Rosie the Riveter," work during the 1940s?