The idea that iconic visible gesture had something to do with the origin of language, particularly speech, is a frequent element in speculation about this phenomenon and appears early in its history. Socrates hypothesizes about the origins of Greek words in Plato's satirical dialogue, "Cratylus", and his speculation includes a possible role for sound based iconicity as well as for the visual gestures employed by the deaf. Plato's use of satire to broach this topic also points to the fine line between the sublime and the ridiculous that has continued to be a hallmark of this sort of speculation. This paper will present recent evidence supporting the idea that language first arose as visible gesture. This evidence is culled from several lines of research, including research on the neurological underpinnings of gesture, i.e., research on mirror neurons; new research on the gestural communication of African apes; research on the cognitive basis of the signed languages of the deaf; and research on the emergence of new signed languages.