Han and Tang Dynasties and Song San. Bashu culture refers to the ancient cultural heritage of Sichuan Basin in China and its adjacent areas. Its cultural history can be traced back to the Spring and Autumn Period, formed in the Warring States Period, flourished in the Qin and Han Dynasties, and continued to the Tang and Song Dynasties. These three dynasties were the heyday of China's feudal era and the peak of Bashu's economic and cultural development. The development of Bashu literature in this period was synchronous with the development of national literature, and sometimes even advanced.