It is considered that ancient history ends and modern history begins in greece rome egypt new york

Rome

Explanation:

Several historians differ from the time that end ancient and modern history but they all mark it in Rome, ancient history usually ends with the fall of the Roman empire, western roman empire, and other mark it with the end of the eastern roman empire. But it is always set on Rome.

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.