In the fifth year (the first 202 years), Emperor Gaozu established Chang 'an County, and built Changle Palace on the basis of the south bank of Weihe River, the north side of Epang Palace and Qinxingle Palace. In the seventh year (the first 200 years), Emperor Gaozu built Weiyang Palace, and the capital moved here from Liyang in the same year. Because it is located in Chang 'an Township, it is named Chang 'an City, which means "long-term stability".
Extended data
Chang 'an is the real capital of the Tang Dynasty. The wall of Chang 'an City is more than 5 meters high, with a length of 972 1 meter from east to west, a width of 865 1.7 meters from north to south and a circumference of 36.7 kilometers. According to archaeological investigation, the area is 84 square kilometers.
Chang 'an City has 10 gates: 3 in the east, 3 in the south, 3 in the west and 1 in the north. Zhuquemen Street, sometimes called "Tianjie", starts from Zhuquemen (the gate of Zhongnanhai in Tang Dynasty) in the north and connects with Mingdemen, the middle gate of the south city wall. Chang 'an, as the central axis of the whole city, is divided into two parts.