X Marks the Spot

Last week, I read an interesting article on the CBC website entitled, "Did early humans communicate with cave signs?"  It talks about research done by Canadian anthropologist Genevieve von Petzinger. She pointed to a small red "X" marking on the rock wall of the Oxocelhaya cave in Southern France and talked about its significance.

According to von Petzinger, this marking was "the first glimmer of graphic communication" among human beings before the written word. For a 30,000 year period, cavemen used only about thirty signs. Although the meaning of these signs is uncertain, they are proof than prehistoric people were communicating with one another.

I couldn't help but think of the stones that I've featured on this blog, especially the ones that have clear "X" markings on them. I suspect they are evidence that prehistoric communication took place, not only in European caves, but also right here at home.