Explain the effects of the trans-atlantic slave trade on american societies

during the process of trading slaves many of them died from hunger work or got disease because they were all putted together in one room on top of each other or they would get beaten and after they beat them they wash them with ocean water that contains salt and the ones who die they through them in the ocean.

the completion of the erie canal spurred the first great westward movement of american settlers, gave access to the rich land and resources west of the appalachians and made new york the preeminent commercial city in the united states.