Key Demand of Labor Movements

During the late 19th century, labor movements in the United States gained significant momentum as workers began to organize in response to poor working conditions, long hours, and low wages. One of the first major labor organizations was the Knights of Labor, founded in 1869. This organization aimed to unite all workers and advocate for various reforms, including the eight-hour workday.

Which of the following was a key demand made by labor movements during this period?