The Art of War is attributed to Sun Tzu. It presents a philosophy of war for managing conflicts and winning battles. Some modern scholars believe that, contrary to popular belief, it contains not only the writings of the original author, but also commentary and clarifications from later military philosophers, such as Li Quan and Du Mu. It is accepted as a masterpiece on strategy and frequently cited and referred to by generals and theorists since it was first published, translated, and distributed internationally. There are numerous theories concerning when the text was completed, and concerning the identity of the author or authors, but archeological recoveries have proven that the Art of War had roughly achieved its current form by at least the early Han dynasty. Sun Tzu was an ancient Chinese military general, strategist and philosopher who is traditionally believed, and who is most likely, to have authored the Art of War, an influential ancient Chinese book on military strategy. Sun Tzu has had a significant impact on Chinese and Asian history and culture, both as an author of the Art of War and through legend. During the 19th and 20th centuries, Sun Tzu's Art of War grew in popularity and saw practical use in Western society, and his work has continued to influence both Asian and Western culture and politics.