<span>Black codes were restrictive laws designed to limit the freedom of African Americans and ensure their availability as a cheap labor force after slavery was abolished during the Civil War. Though the Union victory had given some 4 million slaves their freedom, the question of freed blacks’ status in the postwar South was still very much unresolved. Under black codes, many states required blacks to sign yearly labor contracts; if they refused, they risked being arrested, fined and forced into unpaid labor. Outrage over black codes helped undermine support for President Andrew Johnson and the Republican Party.</span>
<span>Assuming that this is referring to the same list of options that was posted before with this question, the best response is "destructive" since many Natives were moves off their land. </span>
Henry Knox used ox to bring a load of artillery from fort Ticonderoga to Boston. Washington and the army set them up on Dorchester Heights. When they saw the big guns they retreated 9,000 red coats and 2,000 loyalists.