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From Wikipedia, the free encyclopedia. The American Federation of Labor (AFL) was a national federation of labor unions in the United States. It was founded in Columbus, Ohio, in December 1886 by an alliance of craft unions disaffected from the Knights of Labor, a national labor association.
Labor Unions. A labor union is a third-party organization that acts as liaison between workers and the management of the companies that hire them. Labor unions commonly represent workers who perform manual labor, such as factory workers and janitors, but they can also represent teachers and other educated workers.