The world was first decided, where to build the capital? This is of vital significance to the consolidation and development of Dahan. Liu Bang originally planned to set the capital Luoyang, but most of the ministers were from Shandong (east of Kuoshan), nostalgic for the old days, and most of them were in favor of Luoyang as the capital.

At this time, the appearance of a small person prompted Liu Bang to change his mind.

This little person's name is Lou Jing, a native of Ludi (Changqing District, Jinan) in Qi State, and he was a soldier at this time, and he followed the troops to the border of Longxi. When passing through Luoyang, Lou Jing heard about the establishment of the capital. Lou Jing is a person with ideas, and he thinks that it is not suitable in Luoyang. Lou Jing dared to think and dare to do it, and decided to go to the emperor. The question is, the emperor can be seen by a small soldier of yours.

Lou Jing found his fellow countryman General Yu and generously explained his intentions, "I want to see the emperor to talk about major affairs related to the country." "Please ask General Yu to introduce you for yourself. General Yu agreed.

At this point in the story, we can draw three pieces of information: first, Lou Jing should usually be a caring person, and he is brave and knowledgeable, and he is good at dealing with people; Second, General Yu is a good person, and he does not look down on his down-and-out fellow villagers whose status is much lower than his own; The third is that the social atmosphere at that time was open and inclusive, and Xiao Bing wanted to meet the emperor to make suggestions and get help, which could be regarded as a madman in other dynasties.

Before entering the palace, General Yu found a set of good clothes for Lou Jing to change into, after all, he was seeing the emperor and dressing up brightly.

Lou Jing has a lot of character, he refused, "I come in coarse cloth short clothes, so I wear coarse cloth short clothes, and I don't need to change my clothes." ”

General Yu reported to Liu Bang that there was such a person. Liu Bang also wanted to listen to the voice from the grassroots, so he summoned Lou Jing into the palace and gave him a table of food to eat first. Wait for Lou Jing to eat and drink enough before he is called to talk.

Liu Bangfa asked: "What big things do you want to talk about?" ”

Lou Jing did not answer directly, but threw out a question and asked the emperor rhetorically, "Your Majesty built the capital of Luoyang, is it to compare with the Zhou Dynasty?" ”

Liu Bang replied, "Yes." ”

Lou Jing opened the debate mode, and the topic was "Guanzhong is more suitable for building a capital than Luoyang", and he said: "Your Majesty's acquisition of the world is different from that of the Zhou Dynasty. The ancestors of the Zhou Dynasty were enshrined in Tai by Yao, and successive monarchs relied on virtue and politics to inspire the people. His Majesty started from Peixian and fought hundreds of battles before he won with difficulty. The Zhou Dynasty won the world with virtue, and His Majesty won the world with power. The location of the capital city should meet the needs of the times. The terrain in Guanzhong is dangerous, the products are abundant, and there is the foundation of the original Qin State, so it is better to control the world when it is built in Guanzhong. ”

Liu Bang asked for the opinions of the ministers, and the ministers were unwilling to stay away from their homeland, and they argued that the Zhou Dynasty would be the king in Luoyang for hundreds of years, and the Qin Dynasty would die in Guanzhong II, so it was better to stay in Luoyang.

Liu Bang hesitated.

Only Zhang Liang supported Lou Jing's suggestion and said: "The hinterland of Luoyang is too small, with a radius of only a few hundred miles, and it is easy to be attacked on all sides; In the middle of the pass, there is the danger of the Hangu Pass of the Kushan Mountains on the left, and the Qinling Mountains are high mountains on the right, and the land is fertile. There are dangers that can be defended, and the princes can be controlled to the east, and the Yellow River and Weishui can be opened to Cao Yun, which is the so-called golden city for thousands of miles, the country of abundance. I think Lou Jing's proposition is correct. ”

Zhang Liang is resourceful and has always won the trust of Liu Bang, and Liu Bang immediately made a decision and set the capital in Guanzhong. Liu Bang ordered him to leave in the afternoon, not to mention moving the capital before leaving, and only informed him halfway through, and the ministers knew that they had fallen into the emperor's position, but they were helpless.

Due to the destruction of Xianyang, Liu Bang decided to build a new capital. The imperial court institutions were temporarily relocated to Liyang.

Xiao He built Changle Palace on the site of Xingle Palace of the Qin Dynasty on the south bank of Weishui, and built Weiyang Palace on the basis of Zhangtai of the Qin Dynasty as the main hall of the Han Empire. In 200 B.C., Weiyang Palace was built, and the capital was officially moved from Liyang.

Because it is located in Chang'an Township, Liu Bang named his capital Chang'an, which means long-term peace and stability.