From BC 1057 to AD 904, Xi 'an was the political, economic and cultural center of China in ancient times, and it was the longest city in China.
Extended data
Chang 'an is the ancient name of Xi 'an, the first capital called "Jing" in history, and the first real city in history. At this time, the capital of Zhou Wenwang was established, and Fengjing was built. When King Wu ascended the throne, Haojing was built, which was collectively called Fengjing, hence the name "Hao".
In the fifth year of Emperor Gaozu (the first 202 years), Chang 'an County was established, and Changle Palace was built on the basis of the south bank of Weihe River, the north side of Epang Palace and Qin Xingle Palace. In the seventh year of Emperor Gaozu (the first 200 years), Weiyang Palace was built, and the capital was 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".
The cities in Chang 'an area have a long history, and Lantian people established settlements here as early as 6,543,800 years ago. During the Yangshao culture period 7000 years ago, the embryonic form of the city wall appeared here, and Banpo site was the representative of Yangshao culture.
In 2008, the discovery of Yangguanzhai site in Gaoling, one of the top ten archaeological discoveries in China, pushed the history of East Asian cities to the late Neolithic Age 6000 years ago. This settlement, which is equivalent to the size of 40 standard football fields, may be the earliest city in East Asia, with a moat of 1.945 meters on the edge of the city. There has been a simple division of labor in society, and there are some institutional links besides blood relationship.
Baidu Encyclopedia _ Xi 'an (the capital of Shaanxi, the ancient capital of the 13th Dynasty)