Answer: A graduated income tax on personal wealth.
Step-by-step explanation:
During the late 19th century, the Knights of Labor supported the development of the working people. Sometimes this meant to act as a labor union to negotiate with employers. However, the Knights of Labor mostly fought for the eight-hour working day, support for cooperative enterprises, eradication of child labor, eradication of convict labor, equal pay for equal work regardless of gender, and several political reformations.