Why did transatlantic trade expand as the british colonies advanced?

The transantlantic trade triangle expanded just as because the colonies in the new world expanded.

The expanding form of the new colonies in the world also expanded the transantlatic trade as well. It was demanding more slaves and more production of the goods that is to be produced for the sake of export in Europe. Slaves from Africa simply added the volume into the trade that was around 150,000 slaves.

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classical republicanism, also known as civic humanism, is a form of republicanism  developed in the renaissance inspired by the governmental forms and writings of  classical  antiquity, especially such  classical  writers as aristotle, polybius, and cicero.