What was the Congress of Industrial Organizations (CIO) known for regarding labor organization?

The Congress of Industrial Organizations (CIO) is best known for breaking away from the American Federation of Labor (AFL) in the 1930s. This split occurred because the CIO aimed to organize workers in mass production industries, which the AFL had traditionally ignored in favor of skilled workers. The CIO sought to include all workers within a particular industry, regardless of their skill level, leading to a more inclusive approach to labor organization.

The significance of this action reflects the changing dynamics in labor at that time, as the CIO focused on industrial unionism rather than the craft unionism that characterized the AFL. Eventually, the CIO and AFL would reconcile and merge in 1955, marking a significant moment in labor history. This context highlights the CIO's role in reshaping labor organization and advancing workers' rights during a transformative period in American industrial labor.