What hurts but shows no sign of being hurt?

How did the american revolutionary war change how some americans viewed the enslavement of african americans?

Brainliestttme : ) what caused the first opium war? chinese confiscation and destruction of british opium chinese support for the boxer rebellion british efforts to increase opium prices british attempts to force china to accept opium as payment

What was the result on the u.s. economy because of the major changes in atlantic shipping prior to and during the war of 1812?