when did the american federation of labor start
American Federation of Labor Convinced that no accommodation with the leadership of the Knights of Labor was possible, the heads of the five labor organizations which issued the call for the April 1886 conference issued a new call for a convention to be held December 8, 1886 in Columbus, Ohio in order to construct "an American federation of alliance of all national and international trade unions."[12] Forty-two delegates representing 13 national unions and various other local labor organizations responded to the call, agreeing to form themselves into an American Federation of Labor.[13]