Ban Zhao (; 45 or 49 – c. 117/120 CE), courtesy name Huiban (), was a Chinese historian, philosopher, and politician. She was the first known female Chinese historian and, along with Pamphile of Epidaurus, one of the first known female historians. She completed her brother Ban Gu's work on the history of the Western Han, the Book of Han. She also wrote Lessons for Women, an influential work on women's conduct. She also had great interest in astronomy and mathematics and wrote poems, commemorative writings, argumentations, commentaries, essays and several longer works, not all of which survive. She became China's most famous female scholar and an instructor of Taoist sexual practices for the imperial family. Ban Zhao is depicted in the Wu Shuang Pu (無雙譜, Table of Peerless Heroes) by Jin Guliang. Family Ban Zhao was born in Anling, near modern Xianyang, Shaanxi province. At age fourteen, she married a local resident named Cao Shishu and was called in the court by the name as Venerable Madame Cao (). Her husband died when she was still young. She never remarried, instead of devoting her life to scholarship. She was the daughter of the famous historian Ban Biao and younger sister of the general Ban Chao and of historian Ban Gu. She was also the grandniece of the notable scholar and poet Consort Ban. Work Ban Zhao contributed greatly to the completion and transmission of Hanshu (漢書, literally the "Book of the [Former] Han"), the official dynastic history of the Western Han. After Ban Gu was imprisoned and died in 92 because of his association with the family of Empress Dowager Dou, Ban Zhao helped finish the work by making up for the missing part of the Babiao (八表 Eight Tables). She added the genealogy of the mother of the emperor, providing much information which was not usually kept. Later, Ma Xu added a treatise on astronomy (), making Hanshu a complete work. Ban Zhao also wrote the Lessons for Women. This treatise on the education of women was dedicated to the daughters in Ban Zhao's family but was circulated immediately at court. It was popular for centuries in China as a guide for women's conduct. According to the interpretation of classic Western Orientalism, this is a moralistic book, which generally advises women to be compliant and respectful towards the greater purpose of maintaining familial harmony, a highly regarded concept