Xi 'an is the city with the earliest capital, the longest time (1200 years) and the most dynasties in China. Xi 'an condensed the essence of China's history: from the peak of slavery society-the Western Zhou Dynasty, the first unified empire in China and the first prosperous dynasty in China, to the peak of feudal society in China-the Tang Dynasty, from the rule of Cheng Kang, the rule of Wenjing, the prosperity of Hanwu, the prosperity of Zhao Xuan, the prosperity of Guan Kai and the prosperity of Kaiyuan ... Xi 'an wrote the most colorful chapter in China's history. In the history of China, 265,438+0 regimes once established their capitals in Xi 'an. But which of them should be called dynasty is a controversial issue. This is the different understanding of the concepts of "Korea", "capital" and "capital", which leads to the different understanding of which dynasty's capital is in a certain place. At present, there are 13 dynasties recognized by officials and historians. In addition, 14 hypers are different from 17 hypers. 13 dynasty refers to 13 dynasty, including Western Zhou Dynasty, Qin Dynasty, Western Han Dynasty, Xin Dynasty, Eastern Han Dynasty, Western Jin Dynasty (Yu), Former Zhao Dynasty, Former Qin Dynasty, Later Qin Dynasty, Western Wei Dynasty, Northern Zhou Dynasty, Sui Dynasty and Tang Dynasty, which all established their capitals here 1200 years ago. 13 dynasties are the number of dynasties established by the government and historians. 16 Chao Shuo 16 Chao-On the basis of 13 Chao, the regime established by Liu Xuan in the late Western Han Dynasty was restarted, and the red eyebrow regime established by Fan Chong and Liu Pengzi and the Daqi regime established by Huang Chao were added. 17 Chao Shuo 17 Chao-there are two situations: (1) On the basis of 14 Chao, add Dashun established by Wu Zhou, Daqi and Li Zicheng; (2) On the basis of the 13 dynasty, a new initial regime, the Chimei regime, was established, and He Daqi Dashun was established.