There is also some speculation as to whether or not Sun Tzu existed at all. Apparently the age in which he was living left extensive records of almost all people, especially those as high-ranking as Sun Tzu must have been. There are no actual government records stating his position or birthplace. Also, the battles that he analyzes take place during many different times, and some scholars claim that it is unlikely that one person living in the time of Sun Tzu would have been able to know of all these disparate events. Most people, however, believe in his existance due to the fact that the Art of War exists, and is clearly ancient and written by some great general, regardless of his name.