I was once in a museum in Bolzano, Italy. And they had the ice man mummy there (we call him Ötzi). He died like 5000years ago. And his "axe" was made of copper from some mine very far away. So even this guy probably did not know how everything he had was made. There is a theory that he was probably very rich. So maybe less rich people were more in touch with what they owned. But still I found it fascinating that even so far back people relied on technology and materials that they didn't really know about.