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Once the concept of sea travel was accepted by merchants and other traders, the oceans became the preferred avenues by which goods moved from place to distant place. A steady stream of ships laden with materials moved back and forth, and economies prospered. When the New World was discovered, foods previously unknown in Europe were suddenly available. The Blue Revolution: The Blue Highway: Trade Routes Across the Sea takes a look at the kind of cargo that was shipped centuries ago, and also at the loads carried by ships in modern times.