Dating style: the event is introduced in detail, but the time span is short and the historical records of dynasties are discontinuous.
Hanshu, also known as Pre-Hanshu, was compiled by Ban Gu, a historian of the Eastern Han Dynasty in China, with Yan Shigu's comments. It is the first biographical dynastic history in China, and it is one of the "twenty-four histories". Hanshu is another important historical book in ancient China after Shiji, and it is called "the first four histories" together with Shiji, Houhanshu and The History of the Three Kingdoms. Hanshu mainly describes the historical events from the first year of Emperor Gaozu of the Western Han Dynasty (206 BC) to the fourth year of Emperor Wangmang of the New Dynasty (23 AD) and ***230 years. Hanshu includes twelve chapters, eight tables, ten records, seventy biographies and one hundred * * *. Later generations are divided into 120 volumes and 800,000 words.