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Charts & Graphs
Products that don’t physically exist.
Long-distance trade routes revealed by archaeology.
Follow the barter.
Tales of human collateral.
A typology of fictional life swaps.
Fair (and not so fair) exchanges in the natural world.
Pricey fads, then and now.
Technology that enables trade.
Unintended consequences of cultural exchange.
Transforming the earth to move goods.
Diplomatic gifts animal, vegetable, and mineral.
