One day in East Africa, deep in our primitive past, an exceptional innovator carved a palm sized, pear shaped, razor sharp axe head out of stone. This must have revolutionized the ability for he or she and their band of hunter-gatherers to hunt, to butcher food… and to wage war on their neighbors.
This was about seventeen hundred thousand years ago, long before homo sapiens had even appeared on earth. Over time, others learned to copy this stone ax head, and the innovation spread throughout the relatively small population of pre-humans, known as homo erectus, or “upright man.”
The identical design of what archaeologists call Acheulean hand stone axes has been commonly found at many different archaeological sites throughout different eras, and up to about a hundred thousand years ago they were still being made, in exactly the same way, by our homo-sapiens ancestors.
For over a million and a half years, as far as we can tell from the archeological record, this was the extent of human and pre-human innovation. That was it! Nothing new for over 1,600,000 years.
Then, something revolutionary happened; something that changed the nature of humanity and transformed our cultural growth as a species… the world’s first jewelry was invented.
One day, about 90,000 years ago, something new appeared in the heart of Africa. Beads. Beads, made of the shells of a tiny marine snail called Nassarius gibbosulus, painted, and with tiny holes drilled in them.
What was truly transformational, though, wasn’t the beads themselves, it was the mystery they presented. How did beads originally found at the seashore of Mediterranean Algeria make their way hundreds of miles to the south? That would be crossing the Sahara Desert now, but back then it was a lush, green hunter’s paradise.
They were brought there. Not as some one-time haul from a murderous raiding party – which would have been the most likely way up to that point for one tribe to get something from another tribe.
No, these beads were part of something new; something that from any evidence we currently have, had never been seen on the face of the earth before; something we take completely for granted today:
Trade.
This was the first evidence of humans trading with one another. These shells weren’t just jewelry, they were likely used as the first money, as well.
Sure, lots of animals do reciprocal things, like picking the lice out of each other’s hair, or helping each other with a hunt. But to trade different things or actions of different value was brand new. I have some meat, you have some berries, and we figure out a mutually agreeable amount of each to barter so we’re both happy… win/win.
But then to use something as a medium of exchange – the money we use today, or the painted Nassarius shells our distant ancestors used in Africa – accelerated the benefits of trade exponentially.
Eventually, our ancestors developed intricate trade networks, inspiring innovation and cooperation that had never been possible before. In a very real sense, trade is what has made us human. It encourages the better angels of our nature – to borrow the title of a magnificent book by Steven Pinker on why violence has declined.
Trade, among other things, encourages curiosity about other people – and therefore empathy. It encourages us to create what’s called a “theory of mind,” the ability to imagine what another person’s internal world might be like.
When we trade, there’s a benefit to wondering what other people – who are not members of our immediate family or tribe – are interested in, how they communicate, what their habits and customs are, how to approach them in a peaceful and respectful manner, and what we might bring to them to exchange for something they have that we want.
Trade encouraged a whole dimension of curiosity that would never have occurred to our ancestors otherwise.
Recent Comments