What has history taught us about race and race relations in the U. S., and why, ultimately should we care?

The history about the issue race in the US on the olden times were really bad. they're Racist and look on black as dirty or low because of their skin color. it's saying that we should care about it and learn the lesson not to be a racist but to spread love to everyone that. In this way we can unite the world and remake it as a comfortable and good home to live

d is the answer. leo should include the source.

abraham lincoln, according to anyone who was connected with agriculture, represented the worst of northern politicians. shortly after lincoln was elected, south carolina seceded from the union. they along with other southern states, retained their anger. in a way, it was their own fault: the democrats were split in the south. some wanted slavery to be extended in other states that were about to join the union and some didn't want it badly enough. lincoln had a solid backing from his party: the republicans were united in not wanting slavery to be expanded.