Why do different regions have different dialects?

Dialects can be divided into regional dialects and social dialects. Regional dialect is a variant of language due to regional differences, a branch of national language in different regions, and a reflection of the unbalanced development of language in different regions.

Social dialects are different social variants formed by social members in the same area due to social differences in occupation, class, age, gender and cultural upbringing.

Among several dialects of modern Chinese in China, the northern dialect can be regarded as the development of ancient Chinese in the vast northern region after thousands of years, and the rest dialects are gradually formed by the continuous southward migration of northern residents in history. The early Jiangnan area, mainly inhabited by the Guyue nationality, used Guyue language, which was far from ancient Chinese and could not speak.

Extended data:

Language has always been more and more vivid, and dialects that are inconvenient for secretaries are no exception. Moreover, different languages carry different cultures, and some dialects are even more subtle, which can only be understood by people living in the same land and water. Therefore, the protective measures of archiving dialects are obviously not enough to preserve dialects.

Dialect was born in the folk, and its pattern naturally lies in the folk. Therefore, to preserve dialects, it is necessary to let dialects come from the people and the Hui people. Only by word of mouth can dialects reverberate in ravines, flow in small towns and live for thousands of years.

Baidu encyclopedia-Chinese dialect