The largest organizational unit within the union movement emerged with the merger between the:

Question

Quizplus · Accepted Answer

The merger between the American Federation of Labor (AFL) and Congress of Industrial Organizations (CIO) in 1955 created the largest organizational unit within the union movement, known as the AFL-CIO. The United Mine Workers and Knights of Labor were both important early unions, but they did not merge with each other or with the AFL-CIO.

The Largest Organizational Unit Within the Union Movement Emerged with the Merger