"Notes on the Twenty-Two Histories" was written and completed by Zhao Yi in the 60th year of Qianlong's reign in the Qing Dynasty (1795). The book consists of 36 volumes, with one addendum. The book examines twenty-four officially recognized official histories in Chinese history, examines the merits, and discusses the pros and cons, forming nearly 600 notes. However, the book is not only for research, but also for discussion. It is a work that combines historical law, historical events, and historical theory. Since its publication, it has always been valued by historians and is considered an introductory book for studying official history.
