"舊唐書" by Xu Liu is a historical account written during the late 10th century. This book documents the history of the Tang Dynasty, focusing on the reigns and notable events of its emperors, particularly tracing the lineage and accomplishments of Emperor Gaozu and his establishment of the dynasty. The book opens with a detailed examination of Emperor Gaozu's genealogy, his rise to power, and the key events that led to the fall
of the Sui Dynasty and the establishment of the Tang Dynasty. It recounts Gaozu’s military exploits, his foundational policies, and the shifting political landscape of the time, providing insights into the challenges faced while uniting the realm and consolidating authority. Notably, it highlights the significance of alliances, struggles against various warlords, and the emperor's efforts to establish a just governance model. Throughout, "舊唐書" serves as a critical source of information on the rise of one of China's most prosperous dynasties. (This is an automatically generated summary.)