We use terms like “stone age” and “iron age” because those are materials that lasted long enough for us to see them. Wood, fabric, rope, animal hide, many other materials don’t last that long so we have much less information about what people were doing with them.
We use terms like “stone age” and “iron age” because those are materials that lasted long enough for us to see them. Wood, fabric, rope, animal hide, many other materials don’t last that long so we have much less information about what people were doing with them.