People would sell slaves there along with tobacco , tea, sugar , weapons , and other goods. They would also meet up to trade belongings for better ones.
The triangular trade is a trade that took place in Africa, Europe and theAmericas. European nations would sell weapons and goods to Africa and Africa would sent slaves ( war captives) to America and America would sent raw materials to Europe to be manufactured. This cycle goes on and on but it doesn't mean that this is the only trade or route of the trading at the time
In general, the Industrial Revolution, which originated in Great Britain, opened up lots of new opportunities for employment for people, which created a solid middle class.
John Calhoun argued that the 1828 tariff helped the North at the expense of the South (c). This was the case because the tariff bolstered Northerner industrial markets but required Southerners to pay more for manufactured good.