after the civil war The 13th(abolished slavery), 14th( all former slaves are granted citizenship), and 15th(That any citizen, no matter what race, could vote) amendments were added to the constitution.
Gettysburg killed many men and was a huge loss for both sides it also turned the tides of the ending of the civil war. it almost insured yanky victory over the rebals
the civil war affected blacks in many ways. but mainly because the emancipation proclamation gave freedom to black slaves. the slaves were very excited by finally being free after so many years.