The middle and lower reaches of the Yellow River have mild climate, moderate rainfall and fertile soil, and entered the farming society within the city wall earlier, which is called China and Huaxia. The natural conditions in the border areas are poor, and most of them make a living by hunting and animal husbandry, so they are called Yi.
Extended data:
The origin of the name "barbarian"
Shan Hai Jing, the earliest existing geographical work, shows that the one-point square structure came into being more than two thousand years ago. In this book, "The World" is divided into five parts centering on the Central Plains. In Historical Records of Xia Benji, several equidistant grades are carefully depicted, which are centered on the "country of the son of heaven" in the Central Plains, and then extend to the southeast, 300 miles and 200 miles respectively.
Starting from this concept, all previous regimes were based on the Han culture in the Central Plains and called the surrounding areas "barbarians". The orthodox geographical identity of China's ancient dynasties began in Xia Dynasty, and the credit goes to Yu, who leveled the land and distinguished Kyushu. In ancient times, "barbarians" generally referred to ethnic minorities other than those in the Central Plains of China.
This kind of people, called barbarians, look dull on the outside, but they are actually very smart and alert. They are content with local customs and attach importance to old moral habits.
Nanman
The appellation of Nan Man was first recorded in Zhou Li. Yi Rong, China, was a citizen of five parties, which was both sexual and unchangeable. In the east, there are tattoos of foreigners, and there are people who don't eat with fire. In the south, it looks good, and some people don't eat with fire.
The west is called Rong, standing in clothes, and some people don't eat. There are clothes and feathers caves in the north, and there are people who don't eat grains. Refers to the nation with patterns on its forehead in the south, that is, Na Man. I like lettuce, salad and vinegar.
In ancient times, the word "Nanman" generally referred to the area south of the Yangtze River Basin. With the continuous expansion and influence of the politics, economy and culture of the Central Plains, and the continuous integration of the unified political pattern of the Central Plains with the politics, economy and culture of local areas, the geographical area of "Southern Manchuria" has actually covered the whole of Southeast Asia. South of the Yangtze River in China is no longer a barbarian, but a barbarian is a curse.
The ethnic composition of Nanman is relatively complex, which can be roughly divided into three major ethnic groups: Baiyue, Baipu and Bashu. Baiyue nationality is distributed in the vast area south of the Yangtze River, Baipu nationality is distributed in Hunan and Guizhou today, and Bashu nationality is distributed in Sichuan and Chongqing today.
In Shang Dynasty, there were: Yong, Pu, Shu, Kuai, Wei and Yue.
The pre-Qin period was called Nanman, Jingyue, Baiyue, Min, Yong, Baipu, Ba, Shu, Hui, Youmiao, Sanmiao, Heyi and Naked Country.
References:
Baidu Encyclopedia-Iman