Twenty-four histories are the general name of twenty-four historical books written by China in ancient times. They are regarded as orthodox historical books by all previous dynasties, so they are also called "official history". So what do the first four histories of the twenty-four histories refer to?

1 and the Four Histories refer to Historical Records, Hanshu, Houhanshu and the History of the Three Kingdoms.

2. Historical Records is a biographical history book written by Sima Qian, a historian of the Western Han Dynasty. It is the first biographical general history in the history of China, which records the history of four years and more than 3,000 years from the legendary Huangdi era to the early years of Emperor Wu of the Han Dynasty. In the first year of Taichu (BC 104), Sima Qian began to create Taishi Gongshu, later called Shiji. It took 14 years before and after its completion.

3. Hanshu is the first biographical history of China. It was compiled by Ban Gu, a historian of the Eastern Han Dynasty, and lasted for more than 20 years. It was basically completed at the initial stage of its construction, and was interpreted by Yan Shigu in the later Tang Dynasty. Hanshu mainly describes the history of 230 years 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). Hanshu has 100 articles with 800,000 words.

4. The Book of the Later Han Dynasty is a biographical history book that records the history of the Eastern Han Dynasty, compiled by Ye Fan, a historian of the Southern Dynasties and the Song Dynasty in China. The Book of the Later Han Dynasty is divided into ten chapters, eighty biographies and eight records. The whole book mainly describes the historical events from the first year of Jianwu (25 years) of Guangwu Emperor in the Eastern Han Dynasty to the 25th year of Jian 'an Emperor in the Han Dynasty (220 years), totaling 195.

5. The History of the Three Kingdoms written by Chen Shou, a historian in the Western Jin Dynasty, is a biographical national history of Wei, Shu and Wu in China's Three Kingdoms period. The History of the Three Kingdoms was first circulated as a book and a book separately. It was not until the sixth year of Xianping in the Northern Song Dynasty (1003) that the three books were merged into one book.

This is all that I bring to you about the four histories.