. Li Hu, the grandfather of Li Yuan, the emperor of the Tang Dynasty, was one of the Eight Pillar States of the Western Wei Dynasty and was named "Tang Guogong".[13] Later, the title was passed to Li Yuan. Li Yuan lived in Jinyang (southwest of Taiyuan, Shanxi Province) during the Sui Dynasty. He raised troops in the name of respecting the Sui Dynasty. He defeated every battle and went straight to Chang'an. After Emperor Gong of the Sui Dynasty Yang Youchan abdicated the throne, he took the name of "Tang" as his country. [14-16] Because the king's surname was Li, he was also called Li Tang and established his capital in Chang'an.
In its heyday, the Tang Dynasty achieved high achievements in culture, politics, economy, diplomacy, etc. It was one of the prosperous times in Chinese history and one of the world's powerful countries at that time. At that time, neighboring countries such as Silla, Goguryeo, Baekje, Balhae Kingdom and Japan were greatly influenced by the Tang Dynasty in their political systems and cultures [2] [7] [17] . In the first half of the Tang Dynasty, the social economy was on the rise and the culture was advanced. This was a period in history when China exported culture and technology to neighboring countries. The inclusive social atmosphere also gave people who had settled in Senei since the Sixteen Kingdoms of the Five Hus Various ethnic groups provide an unprecedented communication and integration environment, and in the process they also learn a lot from foreign civilizations.
The second half of the Tang Dynasty was in a period of transformation in Chinese history. The reform of the land, salt, iron, and taxation systems marked a slow change in society. The growth of feudal separatist forces and the formation of surrounding nation-states had a profound impact on the nearly thousand years of Chinese history. Produce far-reaching impact