The ancient cave peoples weren't as illiterate as portrayed in popular media. Archaeologists have discovered Paleolithic glyphs in a German cave that could potentially push back the history of written communication by over 30,000 years, per a rock-solid study in the journal Proceedings Of The National Academy of Sciences.

O nálezu informovala Lucie Peřinová ze Střediska společných činností Akademie věd ČR. Výsledky výzkumu publikoval časopis Journal of Paleolithic Archaeology.