Answer:
Female factory workers had to work long hours, sometimes up to eighty hours a week.
Step-by-step explanation:
Joan Dash's "We Shall Not Be Moved" is a dramatic portrayal or stories about the oppressive workspace and lives of women during the Women's Strike of 1909. The book depicts the struggle of the women in trying to bring upon a change and fighting for what is right for the female gender.
Considering the given passage in the question, we can infer that the women worker's union put their demands known at the "closed doors of the meeting halls." These include "a fifty-two-hour week with extra pay for overtime, an end to the fines and petty tyrannies, and a living wage [. . .] along with one more demand, recognition of the union."
The historical detail that best helps clarify our understanding of the information given in the excerpt is that these female workers were made to work long hours.