according to the preamble what was the main concern of the knights of labor
Knights of Labor The Knights' primary demand was for an eight-hour day; they also called for legislation to end child and convict labor, as well as a graduated income tax. They were eager supporters of cooperatives. The only woman to hold office in the Knights of Labor, Leonora Barry worked as an investigator and described the horrific conditions in factories, conditions tantamount to the abuse of women and children. These reports made Barry the first person to collect national statistics on the American working woman.[7]
United States Department of Labor The purpose of the Department of Labor is to foster, promote, and develop the wellbeing of the wage earners, job seekers, and retirees of the United States; improve working conditions; advance opportunities for profitable employment; and assure work-related benefits and rights. In carrying out this mission, the Department of Labor administers and enforces more than 180 federal laws and thousands of federal regulations. These mandates and the regulations that implement them cover many workplace activities for about 10 million employers and 125 million workers.