n to the Jade Gate. It was Li Shi-min who founded the dynasty, it was he who had united and pacified the empire, he alone was able to rule and guide it. When his father retired, he left the throne to his son, who he was so proud of. Li Shi-min became the new emperor, who was 30 years old and took the title of Tai Tsung.
             There were four main characters that explain the success of the Tang Dynasty establishing a unified political system. They were foreign relations, a unified national culture, a centralized government; and fiscal policy.
             The emperor and his court paid close attention to foreign relations. The Tang empire established its dominance over the Turkish tribes in the north and west and established military protectorates to exert control over much of central Asia. They later gained control of the Tibetan people in Turfan. Tang also welcomed trade with India, Persia, and Byzantium. Trade was possible because Tang maintained peace among the various peoples along the Silk Road. Forign merchants and goods were welcome in Chang'an, and foreign religions built their churches there. (Zoroastrianism, Manicaeism, and Nestorian Christianity)
             Tang continued policy that tried to creat
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