The All-China Federation of Trade Unions is officially founded. Today it is the largest trade union in the world, with 134 million members.

The All-China Federation of Trade Unions (ACFTU) is the national trade union center and people's organization of the People's Republic of China. It is the largest trade union in the world with 302 million members in 1,713,000 primary trade union organizations. The ACFTU is divided into 31 regional federations and 10 national industrial unions. The ACFTU is the country's sole legally mandated trade union, with which all enterprise-level trade unions must be affiliated. There has been dispute over whether ACFTU is an independent trade union or a trade union at all. The federation owns a higher education institution—the China University of Labor Relations.

A trade union or labor union, often simply referred to as a union, is an organization of workers whose purpose is to maintain or improve the conditions of their employment, such as attaining better wages and benefits, improving working conditions, improving safety standards, establishing complaint procedures, developing rules governing status of employees and protecting and increasing the bargaining power of workers.