How is there no legend of the disappearance of prehistoric civilizations in China

Why not, Hemudu is a prehistoric civilization.

Hemudu is a Neolithic period, reflecting the settled life and culture of human beings at that time. Its rice farming economy, bone hunting tools, pottery, reproductive culture, etc. have left a good foundation for future generations.

The only difference, the prehistoric civilization you asked, is a similar high civilization that disappeared before China. But the prehistoric civilization that existed in China was different from what you said. The first civilization you ask about is like a myth. Second civilization seems to be quite high.

The prehistoric civilization to which you belong is the origin of another human race, and there is no indirect essential difference from China.

Prehistoric civilizations certainly existed, but not in the way you'd expect.

In addition, Chinese myths and stories seem to have happened in prehistory.

1. Because Chinese propaganda does not focus on the propaganda of prehistoric civilizations.

For example, Nuwa mends the sky = Noah's Ark.

The co-workers are angry and can't touch the mountain, the heavenly pillar is broken, and the earth is desperate. Tilting Northwest = Atlantis?

2. Because the Chinese nation has never been extinct.

3. Civilization disappears is gone, too mysterious, so the world knows nothing about it, such as Sanxingdui.

Are you talking about something similar to Maya? How to say it, it's all too mythical, Sanxingdui counts.

The prehistoric Chinese were too smart.

I didn't leave any clues for future generations.

China's history continues, and they all go through the perish.

Our civilization has continued, and most of the others have perished.

Because several other ancient civilizations have been colonized for a long time, the continuity has been broken. For example, ancient India, ancient Egypt, and so on, although they belong to the four ancient civilizations with China, they all have no continuity because they have been colonized many times.

The most important thing is the geographical reason, the north of China is a nomadic people, in the north is the cold zone, the west is a plateau and high mountain terrain is complex, the south is a mountain and river environment is also complex, only the east is the sea, which is naturally good to protect our civilization in the early stage. And internally, they fought back and forth, and finally they all merged together, no matter who inherited the unification, they would claim to be the inheritors of Chinese civilization. And in the later period, that is, at the beginning of the century, the great powers began to transition the capital route, not for the purpose of occupation and annexation, but as a dumping ground for products, which led to the pain of opium in the future, but it was also the resilience of the Chinese nation, indomitable, and we ourselves worked very hard, so we survived, destroyed the feudal dynasty, drove out the comprador Jiang Guangtou, and established New China.