Li Shimin, the second emperor of the Tang Dynasty, was a politician, strategist, calligrapher and poet. His name means "helping the world and people". Han nationality, born in Ji Cheng, Longxi (now Tianshui, Gansu), is a native of Zhao County (now Longyao County, Xingtai City). At the beginning of the Tang Dynasty, the king of Qin was sealed, and he made great achievements. That is, after he ascended the throne, he actively listened to the opinions of ministers, studied hard to govern the world, and successfully transformed into one of the most famous politicians and wise kings in the history of China. After actively eliminating the separatist forces in various places, he was modest in coachable, practiced economy at home, made the people recuperate, and finally made the society prosperous and stable, creating the famous "Zhenguan Rule" in history, which laid an important foundation for the later realization of "Kaiyuan Prosperity" and pushed the traditional Chinese agricultural society to the peak.

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