Why is there no health risk for researchers working at the burial site? plague is now a treatable disease
plague bacteria cannot survive very long in soil
human beings can no longer be affected by the bacteria that cause plague
there are no rats buried nearby and no fleas to carry the disease

du boi was considered a radical because he wanted the immediate end for segregation. the biggest different between him and booker t. washington is that, even though washington believed that segregation should be considered illegal, he did not believe at all that a law was needed to keep blacks away from whites and that this would be something natural (to have the races apart) for a long time until society adjusted, while du boi believe that agitation was the only way to end segregation.

i would say it is the roman empire europe after the norman conquest.

b.unemployment reached nearly 25 percent.