There are 6,000 languages in the world, and half are endangered. Those 3,000 will be gone by the end of this century if we don't do something. What are we going to do? That is the situation outlined in a new PBS documentary, Language Matters with Bob Holman, by David Grubin and Bob Holman.
These 3,000 endangered languages are part of the history, and the prehistory, of humanity. They are part of prehistory because many are only spoken languages, not written, passed orally from generation to generation, down the millennia.