Which organization, established in 1919, focuses on establishing worker rights globally?

The International Labour Organization (ILO), established in 1919, is the correct answer because it specifically aims to promote rights at work, encourage decent employment opportunities, enhance social protection, and strengthen dialogue on work-related issues. The ILO is uniquely positioned within the United Nations system to set international labor standards, develop policies, and devise programs that can advance workers' rights and improve working conditions globally.

The ILO addresses various aspects of labor such as employment policy, working conditions, social security, and rights pertaining to freedom of association and collective bargaining. These efforts are crucial for ensuring fair labor practices and are directed toward promoting social and economic justice worldwide.

In contrast, the World Health Organization focuses on public health, the International Monetary Fund deals with global economic stability and financial systems, and the World Trade Organization regulates international trade. Each of these organizations plays a distinct role within the global framework, but only the ILO is specifically dedicated to promoting worker rights and labor standards on an international scale.