UNESCO just released an interactive map of the world's endangered languages. Currently there are 2,500 of them. India and Brazil have almost 200 endangered tongues each. The U.S. is home to quite a few itself-like Micmac (8,000 speakers, mostly in Boston).And Irish Gaelic, a language I never thought of as being on the brink of extinction (and the closest thing we have to Elvish) is listed as "definitely endangered," with only 44,000 speakers.Via TED.