Emperor Yang moved 200,000 Hedong households to the Luoyang area instead of Guanzhong. In addition to being economically more prosperous in Henan than Guanzhong, he also had the consideration of enric

Emperor Yang moved 200,000 Hedong households to the Luoyang area instead of Guanzhong. In addition to being economically more prosperous in Henan than Guanzhong, he also had the consideration of enriching the population of the Central Plains and maintaining his strength advantage. After Emperor Yang established the Eastern Capital, he visited the Eastern Capital many times. When cruising north or south, Dongdu is also used as a departure base or transfer station. Taiwan provincial institutions were also established in the eastern capital, and officials in Chang'an and Luoyang were also established accordingly. When Emperor Yang personally conquered Goguryeo and traveled to Jiangdu, it was customary to set up a stay-at-home organization in Kyoto. Emperor Yang not only set up a left-behind in Chang'an, but also set up a left-behind in Luoyang with the same specifications. Setting up a powerful political center in the Central Plains has undoubtedly achieved good results. In the ninth year of the Great Cause, Yang Xuangan launched a rebellion in Liyang, and immediately those who responded gathered. At that time, Emperor Yang led the main force of the Sui Dynasty army to attack Goguryeo in Liaodong, leaving the rear empty of troops. Emperor Yang was so frightened when he heard the news that he was afraid that Yang Xuangan would overthrow his nest. Just when all parties thought that the Sui Dynasty was exhausted, Luoyang played a huge role. Yang Xuangan led his army to attack Luoyang from Liyang. The city of Luoyang was high and strong, and there were a series of satellite cities with large numbers and strong defenses on the periphery. Yang Xuangan fought hard for several months and failed to take a step beyond Luoyang. It was precisely because of the strong restraint of Luoyang City that all parties in the Sui Dynasty were able to quickly mobilize their forces and come from all directions to suppress Yang Xuangan, and finally put down the rebellion without any danger. 3. Dual-capital system: a political measure to spread risks. Luoyang, as the eastern capital and the western capital Chang'an, is actually a political habit of the dual-capital system of the Northern Dynasties to a certain extent. After the Northern Wei Dynasty moved its capital from Pingcheng to Luoyang, Pingcheng has maintained its status as the old capital, with Luoyang to the south and north, controlling the vast territory of the country. After the Northern Wei Dynasty split into the Eastern and Western Wei Dynasties, the Eastern Wei Dynasty always maintained its dual capitals. The political capital was Yecheng, where the royal family and court officials of the Eastern Wei Dynasty were all stationed. The military capital was Jinyang. Gao Huan, King of Bohai and Prime Minister of the Eastern Wei Dynasty, held real power and was stationed in Jinyang all year round. Why set up a deputy capital in Jinyang? If the person in power is not in Yecheng, aren't we afraid that the puppet emperor will cause a coup? This also has historical origins. First, Gao Huan started his career in Jinyang, and his direct forces were all rooted in Jinyang. Most of the political resources and manpower of the Eastern Wei Dynasty were in Jinyang, so there was no need for him to move all the land to Yecheng. Of the two, Jinyang is the core city in Hedong. The north of the city can prevent Rouran from invading from the south, and the south can deter Guanzhong. It is a strategically superior place in military terms. During the Eastern Wei and Northern Qi dynasties, the main army of more than 100,000 people was always stationed in Jinyang, so the army commander must also be permanently stationed here. Therefore, Jinyang was actually the real capital of the Eastern Wei Dynasty and Northern Qi Dynasty. As for the Western Wei and Northern Zhou Dynasties, although they did not have twin capitals in name, they were still layouts of twin capitals. The capital of the Western Wei and Northern Zhou Dynasties was Chang'an City, but during the era when the powerful official Yuwen Hu was in power, another command center was set up in Tongzhou, which was closer to the edge of Guanzhong. The Western Wei and Northern Zhou dynasties were in conflict with the Eastern Wei and Northern Qi. The front lines of the war were in the west and north of Guanzhong. Wars often broke out between the two countries, forcing military commanders to move closer to the front. At the same time, Yu Wenhu also wanted to build his own private power base, so he took advantage of official business to vigorously operate his personal power in Tongzhou, and the country's political resources were gradually introduced into Tongzhou. The origin of the dual-capital system is generally related to the military and political situation. However, with the evolution of history, political habits have gradually formed. Those in power are unwilling to put their eggs in one basket, and resort to the dual-city system to spread risks. Two or more cities that are relatively far apart in space serve as political centers or hubs. function, we can better resist the risk of war. Therefore, Emperor Yang of the Sui Dynasty ordered the construction of Luoyang, the eastern capital, with this aspect in mind. Even the Jiangdu Palace was later built in Jiangdu in the southeast with similar considerations. However, as the saying goes, the beginning is right, but the behavior is also chaotic. Although he had objective considerations, Emperor Yang of the Sui Dynasty lost his true heart in the construction of a series of projects and attached too many personal desires to political considerations, which led to criticism from later generations. This was due to the emperor's personal lack of knowledge.