The document provides a history of collective bargaining in the United States from the late 18th century to present day. Early unions like the Federal Society of Journeymen Cordwainers faced legal challenges but were eventually able to organize strikes. The National Labor Relations Act of 1935 protected union activities and facilitated rapid growth in membership. However, the Taft-Hartley Act of 1947 placed new restrictions on unions and their bargaining power declined in subsequent decades.