Which act is significant for its role in labor movement reforms in the 20th century?

The National Labor Relations Act is significant for its role in labor movement reforms in the 20th century primarily because it established the legal framework for collective bargaining and protected the rights of workers to form unions. Enacted in 1935, this act marked a pivotal change in labor relations in the United States, as it solidified workers' rights to organize and engage in collective bargaining with their employers without fear of retaliation. It also created the National Labor Relations Board (NLRB), an essential mediator in disputes between labor and management, ensuring that workers could represent their interests effectively.

This act served as a foundation for labor rights, empowering workers and providing them with greater leverage in negotiations. It facilitated the growth of unions and thus contributed significantly to improved working conditions, wages, and benefits for countless employees during a time when labor rights were gaining momentum as a critical social issue. The establishment of these protections played a crucial role in the evolution of labor relations in the United States throughout the 20th century.