Trevor By Tlarson15 Sep 4, 1830 Robert Owen Sep 4, 1830 Max Weber Sep 4, 1835 Andrew Ure Sep 4, 1869 Knights of Labor Sep 4, 1880 Frank &Lillian Gilbreth Sep 4, 1888 Henri Fayol Sep 4, 1890 Group Dynamics Sep 4, 1893 Frederick Taylor Sep 4, 1893 Optimum Shovel Sep 4, 1900 Mary Parker Follett Sep 4, 1900 Classic school of Management Sep 4, 1900 Scientific Management Sep 4, 1922 Elton Mayo Sep 4, 1927 Hawthorne Effect Sep 4, 1935 Wagner Act Sep 4, 1949 Eric Berne Sep 4, 1949 Transactional Analysis Sep 4, 1950 W. Edwards Deming Sep 4, 1960 Theory X and Y Sep 4, 1972 Carl Rogers Sep 4, 1980 Total Quality Management Sep 4, 1985 Conflict Management Sep 4, 1994 Douglas McGregor Sep 4, 2000 ROWE