Sun Tzu (also known as Sunzi) was traditionally thought by historians to have been born around 544BCE, and that he later served as a general leading the forces of King He Lü of Wu, one of the seven Warring States of Eastern China during the Spring and Autumn period, and The Art of War is based on his many victories, although modern scholarship suggests the book may have been written later. James Trapp is the author of Chinese Characters: The Art and Meaning of Hanzi, Chinese Proverbs and also has translated a new edition of Sun Tzu's The Art of War. A Chinese language graduate of the School of Oriental and African Studies (SOAS), University of London, he teaches and translates Mandarin and is a former Education Officer at the British Museum.