How old is president trump?

73

Explanation:

73

The Great Migration was the mass movement of about five million southern blacks to the north and west between 1915 and 1960. During the initial wave the majority of migrants moved to major northern cities such as Chicago, Illiniois, Detroit, Michigan, Pittsburgh, Pennsylvania, and New York.

Explanation: The Second Great Migration, 1940-1970

An estimated 5 million people left the South for the North and West.

By the end of the 1970s, the African-American population had almost completely shifted from rural to urban. More than 80 percent of blacks lived in cities, compared with 70 percent of whites.