Sun Tzu proved on the battlefield that his theories were effective (for example, at the Battle of Boju), that he had a successful military career, and that he wrote "The Art of War" based on his tested expertise. However, the "Zuozhuan", a historical text written centuries earlier than the "Shiji", provides a much more detailed account of the Battle of Boju, but does not mention Sun Tzu at all. Beginning around the 12th century, some scholars began to doubt the historical existence of Sun Tzu, primarily on the grounds that he is not mentioned in the historical classic "Zuo zhuan", which mentions
The Art of War (comics) York City to investigate and gets a job at Trench working for Shane's old boss, the brilliant and ruthless Sun Tzu, who manages China's investments around the world. The United States invests all that remains of Medicare and Social Security with Trench in a last-ditch effort to avoid bankruptcy, and Sun Tzu uses Roman to help compete with a company called Vespoid that manages the investments of India and the Vatican Bank. A battle over a highly valuable and dangerous new technology ensues: a start up company called Controlled Black Hole Technologies has pioneered the use of industrial black holes.