We've been at it for 35000 years. https://www.smithsonianmag.com/arts-culture/only-handful-people-can-enter-chauvet-cave-each-year-our-reporter-was-one-them-18

We've been at it for 35000 years. https://www.smithsonianmag.com/arts-culture/only-handful-people-can-enter-chauvet-cave-each-year-our-reporter-was-one-them-180954981/ https://www.smithsonianmag.com/arts-culture/only-handful-peo...