Almost nobody lived in a cave
The word CAVEMAN is doing a lot of damage. Caves preserve things — bones, ash, PAINTING — so caves are where archaeologists find evidence, which makes it look as though that is where everyone was. It is a survival bias, not a fact about how people lived.
Most Stone Age people built. Post holes, hearths and floor surfaces turn up all over Europe from open-air camps, and at Mezhyrich in Ukraine there are SHELTER structures made from the bones of dozens of MAMMOTH, weighing several tonnes each and clearly designed to last a winter. A cave was useful in bad weather and for burying the dead. It was not the housing stock.
Flint is engineered, not just picked up
Knapping FLINT is a hard skill that takes years to learn and modern archaeologists train for it. Strike at the wrong angle and the stone shatters; strike correctly and it fractures in a predictable curve, letting you remove flakes to a plan. The Levallois technique involves shaping a core through dozens of preparatory strikes so that one final blow detaches a finished blade — you have to hold the end product in your head the whole time.
The results are sharp enough to matter. A freshly struck obsidian or flint edge can be a few molecules thick, sharper than a surgical steel scalpel, and some eye surgeons have used obsidian blades for exactly that reason. The TOOLS in this grid are not crude — they are the output of a manufacturing tradition that ran for well over a million years, far longer than anything since.
The cave paintings have handprints in them
At Chauvet in France the PAINTING is around 36,000 years old, and the animals are drawn with shading, perspective and a real understanding of how a lion's shoulders move. These are not first attempts. Whoever made them had been taught.
Alongside the animals, in caves across Europe and Indonesia, are stencilled hands — someone placed a palm on the rock and blew pigment around it. Analysis of the finger proportions suggests a substantial number belonged to women, and some are small enough to be children's. It is the most direct contact you can have with a person from that far back: a hand, at the height they could reach, on a wall.
Stonehenge and what came after
STONEHENGE was built in stages over about 1,500 years, and the smaller bluestones were brought from the Preseli Hills in Wales, some 140 miles away — which is now well established by geological matching. Recent work suggests part of the monument may have been dismantled from an earlier Welsh stone circle and rebuilt in Wiltshire, which would make it secondhand.
It also belongs to the end of this story, not the start. By then people were farming, which changed everything: the NOMAD groups of HUNTER and GATHERER settled, populations grew, POTTERY appeared for storage, and eventually BRONZE and the WHEEL arrived and the Stone Age stopped being the Stone Age. The rest of the grid — the SPEAR, the AXE, the ANTLER pick, the BONE needle, the FIRE, the TRIBE, the HUNTING and the SURVIVAL — covers the two and a half million years before any of that. Our caves page covers how the caves themselves formed.