SciencePrehistoric people may have used light from fires to...

Prehistoric people may have used light from fires to make dynamic art

Prehistoric people may have used firelight to create the illusion of movement in their art.

An analysis of 50 engraved stones excavated in France suggests that when the stones were placed near a fire, the flickering light made the engraved animals seem to move, researchers report April 20 in PLOS ONE.

These stones, or “plaquettes,” were found in the 1860s in a rock-shelter called Montastruc, and are engraved with animals such as horses, ibex and deer. The site was used by Magdalenian people, hunter-gatherers who inhabited the area between 23,000 and 14,000 years ago.

The researchers analyzed heat damage on the stones, which was indicative of them being directly exposed to high temperatures for a prolonged period, and created 3-D models of the plaquettes. Those models were imported to a virtual reality software where they were placed next to a virtual hearth so that the areas of heat damage were closest to the flames, mimicking how the stones may have been placed in real life. The researchers then observed the visual effects of the virtual reality light.

It was surprising to see how dynamic the art was and “how changed your experience of the art was by a simple thing, just putting it close to a fire,” says Andy Needham, an archaeologist at the University of York in England. The work suggests that the artists purposely engraved along the contours of the rock to influence viewers to see meaningful movement through the random pattern of firelight, he says.

The finding adds to archaeologists’ understandings of the relationship between early people’s artwork and fire. Another recent study found that Stone Age humans created “hidden” art in dark caves which could be illuminated and made visible only with the help of the right lighting (SN: 7/6/21).

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