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