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Recently, a growing number of studies have considered the role of language in the social transmission of tool-making skill during human evolution. In this article, I address this question in light of a new theory of language and its evolution, and review evidence from anthropology and experimental archaeology related to it. I argue that the specific function of language—the instruction of imagination—is not necessary for the social transmission of tool-making skill. Evidence from hunter-gatherer ethnographies suggests that social learning relies mainly on observation, participation, play, and experimentation. Ethnographies of traditional stone cultures likewise describe group activities with simple, context-bound interactions embedded in the here and now. Experiments comparing gestural and verbal teaching of tool-making skills also demonstrate that language is not necessary for that process. I conclude that there is no convincing evidence that language played an important role in the social transmission of lithic technology, although the possibility that linguistic instruction was involved as part of the social interactions accompanying tool-making cannot be excluded.

Is Language Necessary for the Social Transmission of Lithic Technology?