Xi 'an changed from an ancient capital of six dynasties to an ancient capital of thirteen dynasties, which should be put forward from the fact that Xi 'an is regarded as the first ancient capital of China. The Six Dynasties in Xi 'an refer to the unified dynasties of Zhou, Qin, Han, Xin, Sui and Tang, and the capital is not the capital. If all the separatist regimes are added, and the regimes that have existed for a short time are added, Xi 'an does have 13 separatist regimes, and a decent country is built. If the details are further calculated, some say 18, while others say 19. However, there is still a question, who is the first ancient capital of China? In fact, Luoyang is the only one that can compete with Xi 'an, so let's see why Luoyang lags behind Xi 'an. I have seen the result of saying that Luoyang is the ancient capital of the 13th Dynasty and then listing it out. However, in this way, Xi 'an can really count to eighteen, nineteen or even twenty. (Similar to burning Dong Zhuo in Luoyang at the end of Han Dynasty, moving the capital to Chang 'an, and Huang Chao proclaimed himself in Chang 'an, etc. )
In terms of quantity, Chang 'an is an absolute advantage. In terms of quality, Chang 'an is also overwhelming compared with Luoyang. Except for the Shang Dynasty, which was in the enlightenment stage of Chinese civilization, other great dynasties built Xi 'an as their capital first, and then moved to Luoyang. After moving to Luoyang, they were often less prosperous than when they built Chang 'an as their capital. For example, although the Western Zhou Dynasty was also a enfeoffment system, the Eastern Zhou Dynasty basically had the right to speak last week. In the Western Han Dynasty, there was the rule of Wenjing, and the Emperor Wudi defeated the Xiongnu, and Zhaojun went to the fortress. In the Eastern Han Dynasty, there was only a resurgence of martial arts. The Tang Dynasty was the heyday of Chinese civilization, but the later Song Dynasty did not recover the north to achieve reunification. After the Yuan Dynasty, the political center became Beijing, and there was nothing to argue between Xi and Luoyang. Therefore, most people who have this question are dissatisfied that Xi 'an is the first ancient capital of China, but there is really nothing to argue about, and there is really no dispute about quantity and quality.