The history of the Tang Dynasty is very complicated because it includes political, economic, cultural, military, and diplomatic developments and changes. The Tang Dynasty was one of the most outstanding dynasties in Chinese history. Its historical chronology needed a lot of time and effort to be sorted out and perfected. However, some historians and historical books have provided some outlines and chronologies of the history of the Tang Dynasty. The historical chronology of the Tang Dynasty can be found in these materials. For example, there was a complete history of the Tang Dynasty written by the historian Li Jishen, which included a very complex timeline of the Tang Dynasty, including political, economic, cultural, military, and diplomatic developments. Other historical books, such as Zi Zhi Tong Jian and Tang History Syllabus, also provided an overview and chronology of the history of the Tang Dynasty. However, it was important to note that this information was only an overview and not a complete and accurate historical chronology. If one wanted to obtain a complete historical chronology of the Tang Dynasty, one might need to further search and read historical documents and books or consult professional historians and historians.