9. Sumerian
We are continuing our list of examples of isolated or extinct languages with Sumerian that is one of the earliest written languages which was in use in Mesopotamia. Many argue about the Sumerian language, whether it was spoken during the first millennium or the second, what happened to it, etc., but one thing is for sure, and that is the death of the language. Because it is an ancient language, there are not enough evidence to explore this matter more deeply and thoroughly.
