Triangular trade

Triangular trade or triangle trade is trade between three ports or regions. Triangular trade usually evolves when a region has export commodities that are not required in the region from which its major imports come. It has been used to offset trade imbalances between different regions.

The Atlantic slave trade used a system of three-way transatlantic exchanges – known historically as the triangular trade – which operated between Europe, Africa, and the Americas from the 16th to 19th centuries. European workers outfitted Slave ships, and they shipped manufactured European goods owned by the trading companies to West Africa to get slaves, which they shipped to the Americas, in particular, to Brazil and the Caribbean Islands. First, in West Africa, merchants sold or bartered European manufactured goods to local slavers in exchange for slaves. Then crews transported the slaves, and remaining European manufactured goods, to the Americas where ship merchants sold the slaves and European manufactured goods to plantation owners. Merchants then purchased sugar and molasses from the plantation owners and crews shipped them to North American colonies (later the US), where the merchants sold the remaining supplies of European manufactured goods and slaves, as well as sugar and molasses from plantations to local buyers, and then purchased North American commodities to sell in Europe, including tobacco, sugar, cotton, rum, rice, lumber, and animal pelts.

This trade, in trade volume, was primarily with South America, where most slaves were sold, but a classic example taught in 20th century studies is the colonial molasses trade, which involved the circuitous trading of slaves, sugar (often in liquid form, as molasses), and rum between West Africa, the West Indies and the northern colonies of British North America in the 17th and 18th centuries.^[1][2] In this triangular trade slaves grew the sugar that was used to brew rum, which in turn was traded for more slaves. In this circuit the sea lane west from Africa to the West Indies (and later, also to Brazil) was known as the Middle Passage; its cargo consisted of abducted or recently purchased African people.

During the Age of Sail, the particular routes were also shaped by the powerful influence of winds and currents. For example, from the main trading nations of Western Europe, it was much easier to sail westwards after first going south of 30° N latitude and reaching the so-called "trade winds", thus arriving in the Caribbean rather than going straight west to the North American mainland. Returning from North America, it was easiest to follow the Gulf Stream in a northeasterly direction using the westerlies. (Even before the voyages of Christopher Columbus, the Portuguese had been using a similar triangle to sail to the Canary Islands and the Azores, and it was then expanded outwards.)

The countries that controlled the transatlantic slave market until the 18th century in terms of the number of enslaved people shipped were Great Britain, Portugal, and France.