[Billthedrill]

...also the lapis lazuli trade and bead trade is quite old.

Yes, that's what I thought they meant. The land trade routes have been slowly revealed to be of astonishing length. It's a long way from Afghanistan to Crete but Mesopotamia is right on that route.

[SunkenCiv]

I wonder if there’s any isotopic difference or natural ratio with, say, antimony, between the tin mined in different places?