9. The Flint Factory
In 2016, archaeologists were shoveling beneath an abandoned kindergarten in Bulgaria. When they found flint, it didn’t take them long to realize that the different-sized pieces meant a lot of tool-shaping once occurred there in antiquity. The more they looked, the more the scope of the factory became apparent. This wasn’t just a hearth around which a few people had gathered and chipped some tools for themselves. It was literally a production line manned by individuals specialized in different aspects of product creation.
Ancient employees toiled 6,500 years ago and mass-produced items such as flint knives. Moreover, experts believe that this was a prehistoric exporting business. No completed tools were found. The only signs of stone were flint cores, chips, and weapons in different stages of production—but none that were finished. This supports the idea that as soon as a knife or ax was done (or a whole batch of them), they were moved elsewhere to be sold. Another interesting discovery at the factory was a grave dating back to the same time it was still in use. Inside was a man clasping a stone ax scepter.