Discoveries in art and history

I was digging around for an idea for art at co-op tomorrow and thought of using stencils (it's munchkins doing art, and I'm not feeling in a super messy mood - we've done plenty of those lately :)), so did a google search for art involving stencils. I came up with this photo taken in "Cuevas de las Manos" in Argentina. It's estimated that these handprints were stencilled in 550 B.C. . So 550 years before Christ was born as a babe, some young men were holding blow pipes made with bones, and spraying mineral paint over their hands to make these hand stencils. Pretty wild that they've been preserved so well for so many years. I'm sure part of it has to do with where they are in the caves, but still, pretty neat to get a glimpse back into someone else's life, and even into their art projects :).