Before the Song Dynasty, the economic center was in the north, and Chang 'an and Luoyang became the preferred capital cities in many countries. Cao Wei regime and Sima family have been operating in Luoyang for many years. This is a prosperous city that they have worked hard to build for many years, and it is the capital most suitable for the Western Jin Dynasty. After years of war, Chang 'an has been ruined. Many people fled Chang 'an to escape the war. Chang 'an has become a small city on the 18 line. There are not many people living here, so it is not suitable as the capital of the new era dynasty.
Many political systems and national laws in the Western Jin Dynasty were established on the basis of the Cao Wei regime, and the Western Jin Dynasty also inherited various political drawbacks of the Cao Wei regime. This is also an important reason why the Western Jin Dynasty became a short-lived dynasty. Everyone knows that the Sima family forcibly seized power from the Cao Wei regime, and they are out-and-out traitors.
It did save a lot of effort and trouble to make Luoyang its capital, but the remnants of Cao Wei's regime still lurk in it. Constant temperature, a powerful minister in the Western Jin Dynasty, was a descendant of a minister of Cao Wei regime. He indulged himself in the political arena of the Western Jin Dynasty, which accelerated the demise of the Western Jin Dynasty. Luoyang, its capital, also had many drawbacks. ? Five random China? This situation has a lot to do with its founder Sima Yan.