Returning to Yiyi and Prospering the Tang Dynasty: Rebuilding the Tang Dynasty Starting from Clerks

At the end of the Tang Dynasty, Hexi fell, and Shazhou fell into a food shortage and war. Chen Jiu, a young man from a poor family, was reduced to a low-level clerk. He held the account books left by his mentor and relied on his accounting skills to detect corruption among the gentry and appease the Hu tribe. Based in Dunhuang, he opened up the trade routes in the Western Regions, supported the logistics of the rebel army with a piece of grain and grass book, and built the new Tang Dynasty step by step from a frontier official with pen and ink.