1. This database is a large-scale historical biography literature database jointly developed by Digital Publishing Department of National Library Press and Peking University Data Analysis and Research Center, and biographies of celebrities can be found in this data.

2. The content of the database takes people as nodes, takes time and region as coordinates, takes biographical original documents as the main content, takes biographies as supplements, and is supplemented by conversion of time, poetry anti-query, Kangxi dictionary and other tools. It has the retrieval functions of people, times, regions, poems, biographies and documents, as well as other functions such as simple and complicated input, comparison of ancient and modern place names, and personal data management. This database aims to be the most comprehensive and comprehensive database in the world.