SALT—​

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Salt has been extracted, traded, and taxed for most of recorded history.

Before mechanical refrigeration, it was the primary means of preserving meat and fish. It allowed food to be stored, transported, and rationed. Armies moved because salt kept provisions intact.

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In the ancient Mediterranean, salt routes shaped settlement and commerce. The Roman road Via Salaria carried salt inland from coastal flats. The word salary derives from the Latin salarium, a payment associated with salt rations or allowances.

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In parts of West Africa, salt traded weight-for-weight with gold. In medieval Europe, governments imposed salt taxes to control revenue. In France, the gabelle became so burdensome that it contributed to unrest preceding the French Revolution.

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In coastal New England during the 18th and 19th centuries, salt was inseparable from cod. Fresh fish spoiled quickly. Packed in coarse salt and stacked in curing sheds, cod were dried, hardened, and shipped across the Atlantic. Salt drew moisture from the flesh, inhibited microbial growth, and stabilized the protein for ocean transport.

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Ports such as Gloucester, Newburyport, and settlements along Cape Cod built economies on salted fish. By the early 1800s, Cape Cod operated hundreds of small-scale saltworks—shallow wooden vats filled with seawater and left to evaporate under sun and wind.

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Salt preserved cod in the North Atlantic, anchovies in the Mediterranean, and pork across Northern Europe. It allowed fishing economies to export protein inland and across oceans. Coastal industries depended on its stability and abundance.

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Salt belonged to winter storage, ship holds, cellar rooms, curing sheds, and long journeys. It was kept where food, hides, medicines, and trade goods needed to endure damp, distance, and time.

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