Final answer:
Female officer candidates began training in Massachusetts for the very first time on July 19, 1942.
Step-by-step explanation:
The female officer candidates began training in Massachusetts for the very first time on July 19, 1942. This marked a significant milestone in the history of women's involvement in the military. Prior to this, women had already been performing various roles in clerical and other fields for the military but were not considered part of the military and thus ineligible for benefits. Before this, women worked for the military during World War I, but their roles were civilian and they did not receive military benefits. The creation of WAAC and the Women Accepted for Voluntary Emergency Service (WAVES) reflected a shift in the military's approach to women's service, recognizing their important contributions and allowing them to serve as part of the armed forces.