It can be said that during the two thousand years from the Western Zhou Dynasty to the Tang Dynasty, the capitals of half (northern) and above dynasties were either Xi 'an or Luoyang. You have me, I have you, love each other and kill each other. Most of the time, they are integrated twins under a strategic plate.
This civilization has been a veritable "Chang 'an-Luoyang" twin-city era for two thousand years since the birth of the thoughtful Tang Dynasty, with one representing Guanzhong and the other representing Kanto.
Reasons for the development gap between Luoyang and Xi in modern times.
Luoyang was once the capital of many dynasties, but now the time gap is quite large. From the late Tang Dynasty to the Ming and Qing Dynasties, the historical and economic center of China shifted from north to south, and Jiangnan became the economic center of China. Compared with the ancient capitals Xi and Luoyang, it began to decline.
Although a number of large and heavy enterprises were established in Luoyang in the early days of the construction of New China, the 1950s and 1960s were indeed a prosperous period. With the beginning of reform and opening up, the disadvantages of traditional state-owned enterprises began to appear. Taking the decline of Northeast China as an example, the situation in Luoyang is the northeast phenomenon in Henan. In the last 20 years, Luoyang has no new industries to lead the upgrading and reform, and there are no very large preferential policies to attract foreign investment.