Ban Zhao
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.