Violence has declined in northern ireland because terrorist organizations

have agreed to negotiate.

Explanation:

Terrorism in Northern Ireland has been a concern since the late 1960s. Although it cannot be considered eradicated yet, it is not a significant cause of concern since the the signing of the Good Friday Agreement of 1998. Violence has significantly decreased because terrorist organizations have agreed to negotiate. The terrorism in this region is mainly political and nationalistic in character, often stemming from the debate surrounding the constitutional status of Northern Ireland and the possibility of a united Ireland.

they thoght they were going to nuke each other

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.