Labor rights advocates have worked to improve workplace conditions which meet established standards . During the Progressive Era , the United States began workplace reforms , which received publicity boosts from Upton Sinclair 's '' The Jungle '' and events such as the 1911 Triangle Shirtwaist Factory fire . Labor advocates and other groups often criticize production facilities with poor working conditions as sweatshops and occupational health hazards , and campaign for better labor practices and recognition of workers rights throughout the world
Triangle Shirtwaist Factory fire
Triangle Shirtwaist Factory fire
Labor rights