Since the beginning of the feng dynasty, China has been in constant friction with the ethnic groups in the north; the King of Zhou You's beacon fire play was because of the invasion of Xi Rong; the Qin Dynasty built the Great Wall to defend against the Xiongnu; Emperor Wudi of the Han Dynasty sent Huo Toyi and Wei Qing to fight the Xiongnu many times; Wuhu Chaohua was a war brought about by the invasion of ethnic minorities in the north; the Yuan Dynasty was a khanate under the Mongol Empire in the north; and the Qing Dynasty was also a feudal regime established by the Manchu qing ethnic minorities outside Guanxi.
But if there was a lot of contact with the northern ethnic groups at the beginning, it must be the Han Dynasty. The popular marriage of princesses and princesses in China was initiated by the Han Dynasty. The reason why the Han Dynasty produced a princess and a princess was also very simple, because Liu Bang could not defeat the Xiongnu, so he could only send the princess to the past and kiss, and the custom of coming and going was retained.
The Xiongnu were previously called Xirong, the nation mentioned above that Qin Shi Huang built the Great Wall to resist. It is also inaccurate to say that the ethnic group is not accurate, and many people estimate that the Xiongnu are not a specific ethnic group, but can be understood as a nomadic regime gathered by multiple ethnic minorities, and they are collectively called the Xiongnu. What is even more unexpected is that the Xiongnu are actually from the same source as us, and we have a common ancestor, that is, the Yellow Emperor.
The Classic of Mountains and Seas and the Great Wilderness of the North classics says: "Inuyasha and the Xia people have the same ancestors, both from the Yellow Emperor. The "Chronicle of History" also says: "The Xiongnu, whose first Xia and later Miao descendants are also." "When Xia Jie was defeated, he fled to the north with some of the remnants, annexing many local tribes and forming the initial scale of the Xiongnu." To destroy the Yiyue Clan, kill and kill it. Loulan, Wusun, Hujie, and the twenty-six kingdoms around them were all Xiongnu. The people of the bow are one family, and the northern state is determined. ”
From the Spring and Autumn Warring States to the Qin Dynasty to the Han Dynasty, the Central Plains have been developing, and the Xiongnu have also been integrating. With the end of the Chu-Han struggle for hegemony, Liu Bang established the Han Dynasty, and the Xiongnu also completed the first great unification in history, that is, Mao Dundan unified the entire north and became the Great Khan of the Xiongnu, and has been at war with the Han Dynasty ever since.
However, just like the Central Plains region, which was divided for a long time, the Xiongnu also experienced decline and strife, and later Hu Han evil Dan reunified the Xiongnu, and submitted to the Han Dynasty, and also married Wang Zhaojun, and the relationship with the Central Plains was rebuilt, until Wang Mang came to the throne. In 46 AD, a serious natural disaster occurred in the Xiongnu region, with more than half of the casualties; 2 years later, the Xiongnu split into two parts, the Southern Xiongnu went south to claim vassals and settled in the Hetao region; the Northern Xiongnu occupied the northern part of the desert and continued to confront the Central Plains.
From then until the end of the Eastern Han Dynasty, the borders were not safe and often fought back and forth; the Xiongnu who could not fight entered East Asia, entered the desert north, and entered Siberia; the Xiongnu who had fought the battle entered the north of China, especially during the Three Kingdoms period, and the war caused the surrounding ethnic minorities to flock to the Central Plains, "the population of Guanzhong was more than one million, the Rong Di lived in half, and the Huns and Hans lived in mixed residences."
The Western Jin Dynasty's Southern Wind and Southern Wind chaos caused the Rebellion of the Eight Kings, the Xiongnu took the opportunity to enter the Central Plains in a big way, and the Southern Xiongnu took the opportunity to establish the Former Zhao regime. With the usurpation of the Northern Zhou Dynasty by Yang Jian, the establishment of the Yuwen clan of the Xianbei tribe during the Southern and Northern Dynasties, the Xiongnu began to completely integrate into other ethnic groups, and now Central Asia and Mongolia all have Xiongnu blood and retain some Xiongnu customs.
Wuhu Chaohua was the final curtain of the Xiongnu, and from then on, there was no longer a Xiongnu.