I think it decreased to small areas of Balkan and Greece.
Wilkinson allegedly became involved in Aaron Burr's attempt to create a separate and independent territory in the Mississippi Valley. Court-martialed in 1811 for his suspected collusion with the Spanish, Wilkinson, holding the rank of general, was acquitted. He so ineptly commanded American forces in the War of 1812 that another court-martial ended his military career.
Answer: B.) During the Great Migration many people moved into cities in the North.
Explanation: It was actually the relocation of about 6 million or more African-Americans from the South to the North from 1916 to 1970. hope this helps good luck!