Labor Union: A labor union is an organization formed by workers to protect their rights and negotiate with employers on issues such as wages, benefits, and working conditions.
Child Labor: Child labor refers to the employment of children in work that is harmful to their physical or mental development. It was a significant concern during the early stages of industrial capitalism.
Collective Bargaining: Collective bargaining is the process where representatives of employees (usually unions) negotiate with employers on behalf of workers regarding terms of employment.