Answer:
The mass movement of African Americans from the south to the north in the early 1900s is commonly referred to as the The Great Migration.
Step-by-step explanation:
The Great Migration -
The Great Migration or The Black Migration or The Great Northward Migration is the movement of about 6 million African Americans from the rural southern United States towards the urban Northeast , West and Midwest region .
It was history's most rapid and the largest mass internal movements .
This migration occurred between 1916 and 1970. According to the U.S. census before 1910 , around 90% of the African - American used to live in the Southern America , but by the end of the Great Migration , only 50% of the African - American population was left .