This pile of sand and stones was once a leather bag containing a hunter’s tools. It was left at a campsite in the Pavlovské vrchy Hills in the Czech Republic around 30,000 years ago. The tools include everything from spear or arrow tips to cutting tools for meat and wood. They are well used and some have been remade from older tools, leading the archaeologists to speculate the tools were taken on long expeditions on which resources were scarce. It’s possible the tools were deliberately discarded because of their worn state.