Shipping traffic between Africa, the Caribbean, and Europe began to soar in the 18th century, a model that was known as triangular trade, and was a rich target for piracy. Trade ships sailed from Europe to the African coast, trading manufactured goods and weapons in exchange for slaves. The traders would then sail to the Caribbean to sell the slaves, and return to Europe with goods such as sugar, tobacco and cocoa. Another triangular trade saw ships carry raw materials, preserved cod, and rum to Europe, where a portion of the cargo would be sold for manufactured goods, which (along with the remainder of the original load) were transported to the Caribbean, where they were exchanged for sugar and molasses, which (with some manufactured articles) were borne to New England. Ships in the triangular trade made money at each stop.