How did new technologies affect the Civil War

Many technologies from the Civil War such as Gatling guns, mines, ironclads, observation balloons and submarines became much more advanced as the years went on. Toward the end of the war both the Union and Confederate armies began to dig themselves into trenches just like World War One.

Explanation:

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regarding the law, the 15th amendment was specifically designed thinking in the rights of black free men.

even though ratified on february 3, 1870, the promise of the 15th amendment would not be fully applied for a long time.poll taxes and literacy tests would allow southern states disenfranchise african americans. only in 1965 the voting rights for african americans would be actually able to vote in the south.

in 1965, president johnson signed the voting rights act, which aimed to overcome legal barriers that prevented african americans from voting as it was guaranteed by the 15th amendment to the u.s. constitution.