The last country to abolish slavery (in the Western world) was Brazil. It abolished slavery in 1888, by the time that almost 4 million slaves were transported from Africa to Brazil.
In the whole world, Mauritania was the last country to abolish slavery.
The 13th, 14th, and 15th amendments were important additions to the constitution because they were created to give equality and aimed mainly towards African-Americans and slaves from he civil war
At the time it was already obvious that the Allies would win and it was only a matter of time till Japan surrenders. However, the Japanese were not ready to surrender, and the only other alternative that the Allies had was to lauch a land attach, which would result in even more casualties. So the <span>Allies attacked both civilian and military targets in Japan
to avoid even more losses</span>