World War 1.
Many blacks left southern states during WW1 and moved to big northern cities to work in war industries.
More went to New York city than to any other,and after the war there a lot of blacks living in Harlem who were literate and artistic.
The burden which Europeans have to bear is called white guilt. This is a burden often attributed to European and American white people who are responsible for all the bad deeds their ancestors commited against other races.
Answer:
Geochronology. The two igneous clasts—an andesite clast and a metatonalite clast—separated from the upper Pottsville Formation yields an age of ∼323 and ∼295 Ma, respectively.
The answer is C. Central Asia
