Which Languages Includes The Other Foreign Languages?

The world is so large and we are aware that as we are aware, there are a lot of things on this world that we don't know yet. Like languages. Languages are the voice of a nation that sheds light on its continuation. That is why languages have to exist and live, but some languages are in danger of extinction and some languages are assumed to be extinct. Yes, we need some answers when there are so many languages. Known and unknown languages [...]