For the first few million years of human evolution, technologies changed slowly. Some three million years ago, our ancestors were making chipped stone flakes and crude choppers. Two million years ago, hand-axes. A million years ago, primitive humans sometimes used fire, but with difficulty. Then, 500,000 years ago, technological change accelerated, as spearpoints, firemaking, axes, beads and bows appeared.
This technological revolution wasn’t the work of one people. Innovations arose in different groups – modern Homo sapiens, primitive sapiens, possibly even Neanderthals – and then spread. Many key inventions were unique: one-offs. Instead of being invented by different people independently, they were discovered once, then shared. That implies a few clever people created many of history’s big inventions.
And not all of them were modern humans.
The tip of the spear
500,000 years ago in southern Africa, primitive Homo sapiens first bound stone blades to wooden spears, creating the spearpoint. Spearpoints were revolutionary as weaponry, and as the first “composite tools” – combining components.
Nick Longrich, Author provided
The spearpoint spread, appearing 300,000 years ago in East Africa and the Mideast, then 250,000 years ago in Europe, wielded by Neanderthals. That pattern suggests the spearpoint was gradually passed on from one people to another, all the way from Africa to Europe.
Catching fire
400,000 years ago hints of fire, including charcoal and burnt bones, became common in Europe, the Mideast and Africa. It happened roughly the same time everywhere – rather than randomly in disconnected places – suggesting invention, then rapid spread. Fire’s utility is obvious, and keeping a fire going is easy. Starting a fire is harder, however, and was probably the main barrier. If so, widespread use of fire likely marked the invention of the fire-drill – a stick spun against another piece of wood to create friction, a tool still used today by hunter-gatherers.
Nick Longrich, Author provided
Curiously, the oldest evidence for regular fire use comes from Europe – then inhabited by Neanderthals. Did Neanderthals master fire first? Why not? Their brains were as big as ours; they used them for something, and living through Europe’s ice-age winters, Neanderthals needed fire more than African Homo sapiens.
The axe
270,000 years ago in central Africa, hand-axes began to disappear, replaced by a new technology, the core-axe. Core-axes looked like small, fat hand-axes, but were radically different tools. Microscopic scratches show core-axes were bound to wooden handles – making a true, hafted axe. Axes quickly spread through Africa, then were carried by modern humans into the Arabian peninsula, Australia, and ultimately Europe.
Ornamentation
The oldest beads are 140,000 years old, and come from Morocco. They were made by piercing snail shells, then stringing them on a cord. At the time, archaic Homo sapiens inhabited North Africa, so their makers weren’t modern humans.
Nick Longrich, Author provided
Beads then appeared in Europe, 115,000-120,000 years