About “Yuanhe Maps and Records of Prefectures and Counties”
The Yuanhe Maps and Records of Prefectures and Counties, compiled by Li Jifu during the Yuanhe reign of the Tang dynasty, is one of the earliest and most complete gazetteers of China. It provides detailed information about the country's administrative divisions, geography, and local conditions. This work is considered a significant historical document that offers insight into the organization and knowledge of China during the Tang dynasty. Its comprehensive nature makes it an important resource for understanding the structure and administration of the country at that time. (Summary adapted from Wikipedia, CC BY-SA 4.0.)
Some summaries adapted from Wikipedia, CC BY-SA 4.0.