Book of Han
The Book of Han (Chinese: 漢書), finished in 111 CE, is one of the Twenty-Four Histories and covers the Western, or Former Han dynasty from the first emperor in 206 BCE to the fall of Wang Mang in 23 CE. The work was composed by Ban Gu (32–92 CE), an Eastern Han court official, with the help of his sister Ban Zhao, continuing the work of their father, Ban Biao. They modelled their work on the Records of the Grand Historian (c. 91 BCE), a cross-dynastic general history, but theirs was the first in this annals-biography form to cover a single dynasty.