When was the ancient country of Loulan established? What is the secret?

China has a splendid history and civilization, and many countries have created their own civilizations and cultures. Like the famous mysterious ancient country Loulan ancient country, Yelang ancient country, Dali ancient country and so on, these are all ancient civilizations bred by China, but they are all like epiphyllum, and they have existed for a short time. The existence and development of these ancient countries has also become an unsolved mystery, but with the in-depth exploration of experts, a lot of information has been gradually discovered. The most famous ancient country of Loulan appeared in the Western Han Dynasty, located in the west of Lop Nur, with a very mysterious but clear history.

1. The ancient country of Loulan is a prosperous place on the Silk Road. Its geographical location is very advantageous. Dunhuang is in the east of Loulan, and Yanqi, Yuli and Ruoqiang are in the west. It is an important hub connecting the Central Plains and the Western Regions and occupies a very important position on the Silk Road. In the past, Loulan ancient country block was very lively, and silk, tea and other transactions were important trading places for transnational trade. There are many records about Loulan ancient country in ancient books. The existence of Loulan ancient country is a gift from nature, and its disappearance is a natural law.

Second, the relationship between the Central Plains and Loulan During the reign of Emperor Wu of the Han Dynasty, envoys were sent to pay tribute to countries in the western regions. Loulan was a necessary country at that time. When passing through Loulan, Loulan killed the envoys at will, and thus the Central Plains forged a hatred with Loulan. After that, Emperor Wu of the Han Dynasty sent troops to conquer Loulan, and there will be many. Don't break Loulan, don't return it? After Loulan fell to Han, the relationship between the Central Plains and Loulan tended to ease. However, in the period of Emperor Zhao of the Han Dynasty, the contradiction between Loulan State and Han Dynasty resurfaced due to the issue of tribute. Later, Zhao Han sent troops to Loulan to monitor Loulan's every move, which laid the foundation for Zhao Han's crusade against Loulan and Xiongnu. After that, the national strength of the Han Dynasty was weak, and Loulan was not provided with enough water and food, and Loulan gradually went to extinction.

The birth of ancient civilization usually requires a high geographical environment. Although Loulan had an excellent geographical position in ancient times, its geographical environment was relatively bad. It is windy and dusty all the year round, the land is barren and water resources are scarce. Under the devastation of natural disasters, it is also reasonable that the ancient country of Loulan will go to extinction.