The first reason is the language problem. Like ancient Egypt and Babylon, it was replaced by Arabic speakers. It is difficult to find a person who can speak ancient Hindi in India now, which means that the culture has not been passed down well.
China, on the other hand, is different. Since Qin Shihuang unified the six countries, an important decision has been to unify the written language, because the written language is unified. Let China establish a very perfect written record system. With a unified written record, you can even find historical events for thousands of years. ?
The second reason is the mainstream thought. This is also thanks to our great Qin Shihuang. After Qin unified the whole country, the idea that only a country can have a home has been growing in everyone's mind. In every subsequent dynasty, every Yellow Emperor had the same idea, that is, to unify the whole country. It is this kind of thinking that every time a foreign country invades China, no matter the emperor's ministers or the common people, everyone has a heart to resist foreign countries.
The third reason is faith. All countries in the world have their own beliefs. China is different from other countries, most of which believe in gods, while China worships ancestors. We have always been proud to call ourselves? China? China's belief has lasted for thousands of years. The saints who appeared in China in different times will bring prosperity to the country, and every thought and theory of them is now very advanced.
The fourth reason lies in the tolerance and integration of China culture. This is an important reason. A careful study of history will reveal a more interesting thing. Historically, as long as there is foreign invasion, the territory of China will expand. Maybe many people don't understand what this means! Simply put, Central Plains culture is superior to surrounding civilizations. Therefore, the Central Plains Mandarin will remain unchanged for five thousand years.