What precisely is language and how did humans acquire it? In an effort to answer these essential questions, this program journeys back to prehistoric times in search of languages origin. But this is not a passive discussion, as Noam Chomsky; Brown Universitys Philip Lieberman; Johanna Nichols, of U.C. Berkeley; Stanford University's Merritt Ruhlen; professor of anthropology Richard Klein; Nobel physicist Murray Gell-Mann; and others passionately defend their points of view. Additional topics include distinguishing features of human communication and what humankinds first utterances may have been. The early evolution and migration of humans is also considered.