human
Why did the Great Migration cause racism to burst onto the national consciousness?
assistant
The Great Migration caused racism to burst onto the national consciousness because it was the largest movement of people in American history. Millions of African Americans moved from the rural Southern states to the industrial centers of the North and West between 1910 and 1970, particularly in cities such as Boston, Chicago, Detroit, New York City (Harlem), Los Angeles, Oakland, Seattle, Portland, Phoenix, and Denver.