DeWall_Timeline By tdewall16 Sep 5, 1820 Robert Owen Sep 5, 1835 Andrew Ure Sep 5, 1911 Optimum Shovel Sep 5, 1915 Max Webber Sep 5, 1916 Henri Fayol Sep 9, 1916 Classical school of Management Sep 5, 1920 Fredrick Taylor Sep 5, 1920 Mary Parker Follet Sep 5, 1920 Scientific Managment Sep 5, 1927 Elton Mayo Sep 9, 1930 Frank and Lillian Gilbreth Sep 5, 1932 Hawthorne Effect Sep 5, 1935 Douglas McGregor Sep 9, 1935 Wagner Act Sep 5, 1960 Eric Berne Sep 5, 1960 Theory X and Theory Y Sep 5, 1960 Transactional Analasis Sep 5, 1960 RoWE Sep 5, 1968 Group Dynamics Sep 5, 1980 W Edwards Deming Sep 5, 1989 Knights of Labor