In different regions inside a country, local varieties of the national language may be used, which are called dialects. The more isolated the region, the more marked the differences may be. In time, some dialects become so different from the original language of the area that they become another language. In some cases it is not easy for linguists to distinguish between a language and a dialect. Also, since languages change constantly, dialects sometimes die out from disuse, and with them dies a piece of history.
Language is a divine gift.
The fascinating process of change in language shows how flexible this gift is. We may also learn from language that no one group of people is superior to another, for there is no such thing as an inferior language. Just as with other divine gifts, language is equally available to all people, no matter what their culture or the place where they live. Since the very beginning, languages of all peoples have been complete enough to serve their purpose. Each one of them is worthy of respect, regardless of how many people use it.