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According to Smarthistory, The Neolithic Revolution is so named because it took place during the Neolithic era, or New Stone Age, around 11,500 to 5,000 years ago. This dramatic change is sometimes called the Agricultural Revolution because it rests on a knowledge of plant and animal husbandry.
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Triangular trade or triangle trade is a historical term indicating trade among 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. Triangular trade thus provides a method for rectifying trade imbalances between the above regions.