What of this term Great Migration is used to describe the mass movement of southern blacks that occurred in the early 20th century as they moved to which area?

The term "Great Migration" refers to the mass movement of African Americans from the rural Southern United States to urban areas in the North and West, particularly cities like Chicago, Detroit, and New York City, during the early 20th century. This migration was driven by the search for better economic opportunities, escape from Jim Crow laws, and the desire for improved living conditions. It significantly reshaped Demographics and cultural landscapes in these regions, as well as contributing to the development of vibrant African American communities and the Harlem Renaissance.