Depends how far back you go. I'm not a historian, but there are obviously local systems of currency; some used gems, feathers, etc. Rai stones were used by isl

Depends how far back you go. I'm not a historian, but there are obviously local systems of currency; some used gems, feathers, etc. Rai stones were used by islanders as a ledger and store of value. https://en.wikipedia.org/wiki/Rai_stones https://en.wikipedia.org/wiki/Rai_stones