This document discusses the changing labor landscape in the late 19th century United States. It provides information on child labor, labor unions like the Knights of Labor and American Federation of Labor, and notable labor disputes such as the Haymarket Riot, the Homestead Steel Strike, and the Pullman Strike of 1894. Key events and figures in the labor movement are summarized, along with the goals of different unions and tactics used by both management and labor groups in disputes over working conditions and pay.