Ohlson_timeline By Falisha Ohlson Sep 5, 1800 Robert Owen Sep 7, 1800 Scientific Management Sep 5, 1835 Andrew Ere Sep 5, 1869 Knights of Labor Sep 5, 1900 Frank and Lilian Gilbreth Sep 5, 1900 Frederick Taylor Sep 5, 1900 Mary Parker Follett Sep 7, 1900 Optimum Shovel Sep 7, 1900 Classical School of Management Sep 5, 1904 Max Weber Sep 7, 1916 Henri Faylor Sep 7, 1920 Hawthrone Effect Sep 5, 1927 Elton Mayo Sep 7, 1935 Wagner Act Sep 7, 1940 Group Dynamics Sep 7, 1960 Theory X and Y Sep 7, 1960 Carl Rogers Sep 7, 1960 Douglas McGregor Sep 7, 1960 Eric Berne Sep 7, 1960 Transcational Ananlysis Sep 7, 1980 Conflict Management Sep 7, 1980 W. Edwards Deming Sep 7, 1980 Total Quality Managment Sep 7, 2007 Results Only Work Environment