The United States was unique in the world as a democracy of people from many different nations.
Demographic shifts across the U.S. The Great Migration, sometimes known as the Great Northward Migration or the Black Migration, was the movement of 6 million African Americans out of the rural Southern United States to the urban Northeast, Midwest and West that occurred between 1916 and 1970.
The answer would be the B,C and D.
<span>B. The Sui dynasty reunited China in the sixth and seventh centuries by combining existing laws into a single legal code
C. The Grand Canal was constructed to unite northern and southern China.
D. The Sui united northern and southern China, but the new empire was too big to govern effectively.</span>
Answer: After word war ii
The Population Registration Act determined people's race classification, which in turn determined the implementation of many other racially based laws. One of the apartheid laws passed in the 1950s was the Group Areas Act, which determined where people of different racial groups could live.
