The Tang Dynasty is not only a powerful Dynasty in ancient China, was one of the countries in the world the most rich, strong and prosperous. The prosperity of the Tang Dynasty also affected the neighboring countries,especially Japan, Korea and other East Asian countries.Japan was specially sent to China to the school system and culture. Tangdu Changan, not only is the politicalcenter at that time, and it is one of the cultural exchange of Asian economic center. Because the influence of the Tang Dynasty in the great and far-reaching, Chinese people were called "tang". Until now, the overseas Chinesecommunities is also known as the "Chinatown".