The so-called primitive Chinese should refer to Chinese in prehistoric times, that is, the phonology of Chinese before the invention of writing. After the invention of writing, Chinese has basically matured and stereotyped, and it no longer belongs to primitive Chinese. Chinese can be divided into four periods: ancient Chinese, middle Chinese, modern Chinese and modern Chinese. Primitive Chinese is even earlier than ancient times.
Every language has a source, and this source is the original language of this language. For example, the Indo-European language family (including English, French, Italian, Iranian, Indian Hindi, Sanskrit, Tohoku, etc.) has a "primitive Indo-European language" with the same meaning. At present, linguists have completely constructed the original Indo-European language. This primitive Indo-European language no longer exists, but about 8 years ago, these people belonging to the Indo-European language family did speak the same "primitive Indo-European language".
Generally speaking, according to the classification of linguistics, a language has another language family, and a language family contains several or even dozens of similar languages, and the languages of the same language family come from the same original language. That is to say, the same language was a language thousands of years ago. With the dispersion and migration of people, the same language scattered everywhere has gradually become the same language but different languages. Some of these languages can communicate with each other, while others can't understand each other at all.
There are many dialects in Chinese. We in China divide people who speak Chinese all over the country into various "dialects", and some scholars abroad refer to different dialects as "languages", such as Mandarin, Jin, Wu, Xiang, Gan, Minnan, Cantonese and Hakka. But Chinese is a special language. No matter what you call dialects or languages, they all use the same Chinese characters, so they belong to one language in essence.
None of these dialects in China can be called "primitive Chinese", and they are far from primitive Chinese. These dialects are only related to the ancient Chinese phonology of different times. For example, Wu dialect retains more pronunciations of Chinese in Wei and Jin Dynasties. Jin dialect, on the other hand, retains more Tang sounds. Cantonese pronunciation, on the other hand, is a combination of ancient Chinese elegance and Lingnan ancient Vietnamese, which has basically taken shape in the Tang Dynasty.
Chinese and Tibetan were separated about 5 years ago, that is, about 3 BC. However, both Chinese and Tibetan have gone through a long and complicated history, and their languages have also undergone great changes, which are far from their original "original Sino-Tibetan".
So the original Chinese is completely gone in real life? The original Indo-European language can also find clues from the ancient Sanskrit, so there is no realistic remains in Chinese? Where can I find traces of primitive Chinese? There is really a language close to the original Chinese! This is "Jiarong Language"! Jiarong language can be said to be a "living fossil" of Chinese!