From: newtimesla.com

By Glenn Gaslin

Wild Don Lewis Linguist Marcus Smith was inspired by the language of J.R.R Tolkien. Fewer than 100 people on Earth speak the language of the Chickasaw Indians, a tribe that now inhabits a swatch of Oklahoma. Their tongue is one of harsh consonants and low, long vowels, of words such as takolo lakna okchi. Of those fluent in Chickasaw, no one is younger than 55. Decades from now, nobody will speak it anymore. [More]

Thanks to Thomas for the tip!