Criticism of Wikipedia hands—but they had agreed that the company would not be allowed to review his writing before submission". Jimmy Wales, also quoted by CBS, expressed his disapproval of Microsoft's involvement: "We were very disappointed to hear that Microsoft was taking that approach". In the essay, "Can History be Open Source?: Wikipedia and the Future of the Past" (2006), the academic historian Roy Rosenzweig criticized the encyclopedic content and writing style used in Wikipedia, for not distinguishing subjects that are important from subjects that are merely sensational. That Wikipedia is "surprisingly accurate in reporting names, dates, and events in U.S. history", and
Jimmy Wales edited his own biographical entry on the English Wikipedia. Writer Rogers Cadenhead drew attention to logs showing that in his edits to the page, Wales had removed references to Sanger as the co-founder of Wikipedia. Sanger commented that "having seen edits like this, it does seem that Jimmy is attempting to rewrite history. But this is a futile process because in our brave new world of transparent activity and maximum communication, the truth will out." Wales was also observed to have modified references to Bomis in a way that was characterized as downplaying the sexual nature of some of his