People often assume human language has been around for as long as Homo sapiens—roughly 300,000 years. But when did we actually develop the cognitive capacity for it? A new genomic study suggests our linguistic potential was in place 135,000 years ago—long before the first evidence of writing or complex societies.
What the Study Found
A team of researchers, including Shigeru Miyagawa (MIT) & Ian Tattersall (American Museum of Natural History), undertook an analysis of 15 genetic studies to determine when early Homo sapiens first split into distinct populations. Their logic? If every modern human group has language, then linguistic capacity must have existed before the first population divergence.
Their findings indicate that this first split occurred 135,000 years ago—meaning that by this time, humans were already equipped with the cognitive architecture for language. However, language as a communicative system may not have taken off until 100,000 years ago, coinciding with a surge in symbolic behaviours, such as engraved ochre pieces & body ornamentation.
Why This Matters
The study builds on previous research in linguistics, archaeology & genetics to strengthen the case for an early origin of language. It also contributes to an ongoing debate: did language evolve gradually, or did it emerge suddenly in a ‘cognitive leap’? Chomsky & Berwick argue for a sudden, all-or-nothing emergence, whereas others (like Jackendoff) suggest a more incremental process.
While we may never pinpoint exactly when language began, this study suggests it was a defining feature of early humans—long before the written record.
Teacher Takeaways?
The universality of language: If every human population has language, does this reinforce the Chomsky’s theory of universal grammar? While controversial, it’s worth considering how innate cognitive structures might shape second language learning.
Language & symbolic thought: I’m sure you don’t need reminding, but the link between language & symbolic reasoning strengthens the case for integrating storytelling, metaphor & abstract reasoning in ELT classrooms—not just grammar drills.
Do you feel that understanding language evolution can make us better teachers or learners?
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