The Art of War is an ancient Chinese military treatise dating from the Late Spring and Autumn Period (roughly 5th century BC). The work, which is attributed to the ancient Chinese military strategist Sun Tzu ("Master Sun", also spelled Sunzi), is composed of 13 chapters. Each one is devoted to a different set of skills (or "art") related to warfare and how it applies to military strategy and tactics. For almost 1,500 years it was the lead text in an anthology that was formalized as the Seven Military Classics by Emperor Shenzong of Song in 1080. The Art of War remains the most influential strategy text in East Asian warfare and has influenced both Eastern and Western military thinking, business tactics, legal strategy, lifestyles and beyond. The book contained a detailed explanation and analysis of the Chinese military, from weapons and strategy to rank and discipline. Sun also stressed the importance of intelligence operatives and espionage to the war effort. Because Sun has long been considered to be one of history's finest military tacticians and analysts, his teachings and strategies formed the basis of advanced military training for millennia to come. The book was translated into French and published in 1772 (re-published in 1782) by the French Jesuit Jean Joseph Marie Amiot. A partial translation into English was attempted by British officer Everard Ferguson Calthrop in 1905 under the title The Book of War. The first annotated English translation was completed and published by Lionel Giles in 1910. Military and political leaders such as the Chinese communist revolutionary Mao Zedong, Japanese daimyō Takeda Shingen, Vietnamese general Võ Nguyên Giáp, and American military general Norman Schwarzkopf Jr. have drawn inspiration from the book.The Art of War is traditionally attributed to an ancient Chinese military general known as Sun Tzu (now romanized "Sunzi"), meaning "Master Sun". Sun Tzu was traditionally said to have lived in the 6th century BC, but The Art of War's earliest parts probably date to at least 100 years later. Sima Qian's Records of the Grand Historian, the first of China's 24 dynastic histories, records an early Chinese tradition that a text on military matters was written by one "Sun Wu" (孫武) from the State of Qi, and that this text had been read and studied by King Helü of Wu (r. 514–495 BC). This text was traditionally identified with the received Master Sun's Art of War. The conventional view was that Sun Wu was a military theorist from the end of the Spring and Autumn period (776–471 BC) who fled his home state of Qi to the southeastern kingdom of Wu, where he is said to have impressed the king with his ability to train even "dainty palace ladies" in warfare and to have made Wu's armies powerful enough to challenge their western rivals in the state of Chu. This view is still widely held in China.The strategist, poet, and warlord Cao Cao in the early 3rd century AD authored the earliest known commentary to the Art of War. Cao's preface makes clear that he edited the text and removed certain passages, but the extent of his changes were unclear historically. The Art of War appears throughout the bibliographical catalogs of the Chinese dynastic histories, but listings of its divisions and size varied widely.During the Sengoku period (c. 1467–1568), the Japanese daimyō named Takeda Shingen (1521–1573) is said to have become almost invincible in all battles without relying on guns, because he studied The Art of War. The book even gave him the inspiration for his famous battle standard "Fūrinkazan" (Wind, Forest, Fire and Mountain), meaning fast as the wind, silent as a forest, ferocious as fire and immovable as a mountain.