New technique shows cave art in ?? is dated back to 64.8 ka. This was before humans were in Europe. Shows Neanderthals created this art.

New technique is U-Th dating. Dating of carbonate crusts from on top or underneath the cave art. Provides reliable age range for the art.

Discovery proves Neanderthals used symbols. Ends scholarly debate. Before, scholars thought humans were first to use symbols #NeanderthalArt