Taha Yasseri of the Oxford Internet Institute and colleagues looked at Wikipedia’s different language editions from their inception (January 2001 for English) to March 2010 and ranked the most contested articles, based on the number of reverts and the number of edits the contributors have made (dubbed their “maturity score”). The results in some ways confirm cultural stereotypes. Americans bicker over politics and professional wrestling; among the top French squabbles is Freud.

Source : Daily chart: Edit wars | The Economist