In June 2006, Roy Rosenzweig, a professor specializing in American history, published a comparison of the Wikipedia biographies of 25 Americans to the corresponding biographies found on Encarta and American National Biography Online.
In June 2006, Roy Rosenzweig, a historian specializing in American history, conducted a comparison between the Wikipedia biographies of 25 Americans and their corresponding entries on Encarta and American National Biography Online.