Zizhi Tongjian (traditional Chinese character: 資治通鑑; simplified Chinese character: 资治通鉴; pinyin Zīzhì Tōngjìan, Wade-Giles Tzu-chih t'ung-chien) is known to be a important Chinese history text of annual chronology. Sima Guang was the major contributor, from collecting primary sources, to drafting, to publication. Work on the book started in 1065 and ended in 1084. It recounts the history of China from Warring States Period to the end of Period of the Five Dynasties and the Ten Kingdoms. Literary meaning of the Chinese title is Comprehensive Mirror to Aid in Government.