Child Labor: The employment of children in work that is harmful to their physical or mental development; it was prevalent during the Gilded Age.
Unionization: The process of workers forming labor unions to collectively bargain for better wages, working conditions, and benefits.
Triangle Shirtwaist Factory Fire: A tragic incident in 1911 where a fire broke out in a garment factory, resulting in the death of 146 workers due to poor safety measures. It highlighted the need for improved labor conditions and workplace safety regulations.