Historical Records: Historical Records is a classic in China's ancient history books, in which a digital chronology is recorded. For example, according to historical records, one year in the Han Dynasty refers to 206 BC and two years in the Han Dynasty refers to 205 BC.

Hanshu: Hanshu is a historical book that records the history of the Western Han Dynasty, which also contains the information of digital chronology. For example, in Hanshu, the third year of Jianyuan (before 138) is considered to be an important period of political and military development in the Western Han Dynasty.

The History of the Three Kingdoms: The History of the Three Kingdoms is a historical book that records the history of the Three Kingdoms period, and also uses a digital chronology. For example, in the Three Kingdoms, the Yellow turban insurrectionary took place in 184, and in Battle of Red Cliffs in 208.

In a word, although the digital chronology is not a common way in China's ancient history books, it is indeed an important way to record some important historical events or political periods.