This statement of Yandi Shennong lasted for one or two thousand years, but if we trace it upwards along the footsteps of history, dramatic changes took place in the Han Dynasty, why? Further upwards, it is found that Yandi and Shennong are said separately, according to which it can be inferred that the Han Dynasty was the watershed of Yandi and Shennong, and through the integration of experts and scholars in the Han Dynasty, these two figures or two clans were merged into one, just like the Jingshui and Weishui rivers are clearly visible, but the further back they go, the more blurred they become, and the more difficult it is to distinguish after entering the Yellow River. To be exact, the Shennong clan is much earlier than Emperor Yan, as for how much earlier, there is no way to verify, but there is such a record in the ancient books: there is a son of the Lieshan clan who said that the pillar is Ji, and he has been worshiped since Xia. This sentence can show that there was a person named Zhu in the Lieshan clan who began to grow millet, which is a general term for a type of grain such as millet and millet, which may be the earliest Shennong. There are several theories about Shennong: one theory is that Shennong was originally a person's name, and because he or she made a great contribution to farming, it has been passed down to this day. The second theory is an upgraded version of the first statement, and it is precisely because of the great contribution that he was elected as the leader of the tribe, and the tribe has been following this name since then to form the clan of Shennong, which is the most likely. The third is the meaning of the god of agriculture, that is to say, he is a god in ancient times, because there were activities to worship the god of agriculture in the Xia Dynasty.

But in any case, the Shennong clan is inextricably linked with Emperor Yan, and the Emperor Yan clan is the first clan in the northern region to know how to cultivate agriculture, which can be determined. The birthplace of the Yandi clan is not far from the Yellow Emperor clan, and it is also in the Shaanxi and Gansu regions around the Qinling Mountains - Huayang, which is the yang side of Huashan, the middle generation of Jiang Shui, the climate in that place at that time was mild, and grazing and farming were very suitable.

Emperor Yan's mother's name is Nu Yan, and she is also the daughter of the Youqian clan, in this respect, the Yellow Emperor of Yan is really a relative, and the Youqian clan is a great clan. At the end of a certain month in a certain year, the woman and a group of friends went to Huashan to play, the wind and the sun were beautiful, the birds were singing and the flowers were fragrant, the clear spring was murmuring and the apes were crying, the elk were leisurely eating grass, and the wild cranes were walking leisurely, it was really a fairyland on earth that made people happy and forgetful. The lady and her friends were chasing and frolicking, and suddenly they felt in a trance, and in the haze they felt that someone was approaching them, and they felt that they were bathed in the soft spring breeze and felt extremely comfortable, and for a while they felt that they were in the hot and dry mouth in the fiery red sun, and a big black bird flew out of the middle of the sun, spinning and flying around them, and for a while I felt that I was riding on a galloping horse, and the wind whistled past my ears, and my body rose and fell with the galloping horse's back very happy. Suddenly, she heard the Lieshan clan calling for herself, so she hurriedly answered, opened her eyes, and found that she was being held in the arms of the Lieshan clan and called anxiously. The Lieshan clan was very happy to find out that the female concubine had woken up, and told her that she and her female companions were playing when they suddenly fainted, and everyone was frightened and ran to tell the Lieshan clan, and the Lieshan clan came at this time. The maiden told the Lieshan clan about the fantasy just now, and the Lieshan clan was very surprised, so she asked the wizard to see what was going on, and after the wizard finished praying, he told the leader that it was the sun god who patronized it, and our tribe would be strengthened by it. The whole clan was so happy that they had a big party about it.

Soon the woman felt that she was pregnant, and then gave birth to a baby boy named Qingjia, Qingjia was very intelligent and observant since he was a child, and he was a celebrity in the tribe since he was a child, because the wizard said that he was the son of the sun god, so people always obeyed him like a god. One winter, an accidental fire broke out on the grassland, and the people of the tribe survived a difficult winter. In the spring of the following year, after sowing the crops, Qingjia was surprised to find that the crops in the area burned by the fire were very strong, and the yield had increased significantly, while the rest of the land was still the same. It must be the cause of the fire, Qingjia thought so, in order to prove it, he took the fire out of a piece of ground and tested it, and sure enough, it was so. Qingjia taught this method to the people of the tribe, and there was a bumper harvest of grain that year, because Qingjia was good at using fire, and the people of the tribe called him Emperor Yan, which was the first Emperor Yan. Emperor Yan later invented the plow, and on the basis of the plow, it was finally improved, which greatly improved the labor productivity, and after solving the problem of eating, people went to work less often, and there were few entertainment programs at that time, unlike now chatting on the Internet, watching TV, traveling, etc., which led to a sharp increase in population. In addition, the surplus of wealth led to the beginning of the division between the rich and the poor, and the infighting began, prompting some people to gradually migrate eastward in search of their own paradise.

The migration route of the Yan Emperor was along the Weishui to the east, and then along the south bank of the Yellow River all the way to the east and formed a state of dog-tooth interlacing with the local Dongyi group, and by the time the Yellow Emperor arrived, the Yan Emperor clan had already established a foothold in the Central Plains for 500 years, and the name of the Yan Emperor was Yu Yan at that time.

Battle of Zhuolu

After the two tribes met, they were safe at first, after all, the two tribes were connected by blood, and there was no substantive conflict, one was grazing, the other was farming, they did not affect each other, there was not much conflict of interest, the place was vast and sparsely populated and rich in resources, even if there was a little contradiction and apologized to each other. All in all, the relationship between the two tribes is relatively harmonious.

The Yellow Emperor was a smart and studious man, gifted and intelligent, and soon he found that agricultural cultivation was much more advanced than nomadic herding, and the life security was better. So he learned to plant from the Yandi tribe, and developed many varieties from it, from the original millet and millet to the five grains, millet, soybean, wheat, and rice. Agricultural production tools have also been greatly improved, the two-way development of animal husbandry and agriculture has made the Yellow Emperor tribe drought and flood to ensure a bumper harvest, and the small life is very nourishing, it stands to reason that such a fairy-like life should also be born, but the Yellow Emperor does not think so, he is a very ambitious person, without great ambition will not migrate all the way from the Shaanxi-Gansu border to the Hebei Great Plain, without superhuman perseverance and excellent leadership is unimaginable. The leader of the Yandi tribe is Yu Gang, and Yu Gang's talent root is incomparable to the Yellow Emperor, and his ability to control the tribes has gradually weakened.

The climate change is intensifying, and the Hebei Great Plain inevitably enters the temperate climate. The average annual temperature drops by 1 degree Celsius, which is roughly about 200 miles to the south. The change of climate is that the water resources of this place began to decrease, the Yellow Emperor clan has not fully entered the era of farming, in fact, the development of the Yellow Emperor's tribes is very unbalanced, the later generations called "Rong" are the descendants of the Yellow Emperor tribe, to the Zhou Dynasty there is also a record of the daughter of Lishan as the Son of Heaven, that is to say, Lishan Rong is still a matrilineal system. At that time, whether it was farming or animal husbandry, they all depended on the sky for food, especially those tribes who lived by water and grass were living in more difficulty, resources were becoming more and more scarce, productivity did not develop by leaps and bounds, and the war for resources was about to break out.

Emperor Yan is still the leader of the Great Plain of Hebei, but the Yellow Emperor is not under the jurisdiction of Emperor Yan, the fuse of the outbreak of war is that Emperor Yan requisitioned a large number of materials from a tribe that manufactures pottery and a clan that manufactures production tools, these two clans are overwhelmed and took refuge in the Yellow Emperor, these two clans are very important to the Yanhuang tribe, the Yellow Emperor is of course very happy to get these two clans, Emperor Yan is very annoyed, and the Yellow Emperor wants the Yellow Emperor is of course not to give, to the most fat who will spit it out, Emperor Yan said you don't give it, believe it or not, I beat you, the Yellow Emperor said I am not scared of you this。 The needle tip is getting more and more angry with McWal's back and forth.

The Yellow Emperor moved from the nomadic era to the semi-agrarian era, and his power on the Great Plain of Hebei was very strong, while the Yan Emperor's control over other tribes was declining. As the saying goes: a camel is bigger than a horse, and a hundred-legged insect dies but does not stiffen. Don't look at the decline of the Yandi tribe, and the Yellow Emperor fought with the Yellow Emperor, the Yellow Emperor is not one, the Yellow Emperor was defeated and retreated in the early days of the war, there were countless big battles and small battles, and the Yellow Emperor won less and lost more