Answer:
The Great Migration, sometimes known as the Great Northward Migration or the Black Migration, was the movement of six million African Americans out of the rural Southern United States to the urban Northeast, Midwest and West that occurred between 1916 and 1970. It was caused primarily by the poor economic conditions as well as the prevalent racial segregation and discrimination in the Southern states where Jim Crow laws were upheld. The historic change brought by the migration was amplified because the migrants, for the most part, moved to the then-largest cities in the United States (New York City, Chicago, Detroit, Los Angeles, Philadelphia, Pittsburgh, Cleveland, Baltimore, and Washington, D.C.) at a time when those cities had a central cultural, social, political, and economic influence over the United States. There, African Americans established influential communities of their own. According to Isabel Wilkerson, the migrants and the children of the migration put the lie to the limiting ideology of Jim Crow, and exclusion. Despite, for many, the real sadness in leaving the South, and all the barriers faced by the migrants in their new homes, the migration was an act of individual and collective agency, which changed the course of American history, a "declaration of independence" written by their actions. From the earliest U.S. population statistics in 1780 until 1910, more than 90% of the African-American population lived in the American South, making up the majority of the population in three Southern states, viz. Louisiana (until about 1890), South Carolina (until the 1920s), and Mississippi (until the 1930s). But by the end of the Great Migration, just over half of the African-American population lived in the South, while a little less than half lived in the North and West. Moreover, the African-American population had become highly urbanized. In 1900, only one-fifth of African Americans in the South were living in urban areas. By 1960, half of the African Americans in the South lived in urban areas, and by 1970, more than 80% of African Americans nationwide lived in cities. The Great Migration was one of the largest and most rapid mass internal movements in history—perhaps the greatest not caused by the immediate threat of execution or starvation. In sheer numbers, it outranks the migration of any other ethnic group—Italians or Irish or Jews or Poles—to the United States. For Black people, the migration meant leaving what had always been their economic and social base in America and finding a new one. Some historians differentiate between the first Great Migration (1916–40), which saw about 1.6 million people move from mostly rural areas in the South to northern industrial cities, and a Second Great Migration (1940–70), which began after the Great Depression and brought at least 5 million people—including many townspeople with urban skills—to the North and West. Since the Civil Rights Movement, the trend has reversed, with more African-Americans moving to the South—albeit far more slowly. Dubbed the New Great Migration, these moves were generally spurred by the economic difficulties of cities in the Northeastern and Midwestern United States, growth of jobs in the "New South" and its lower cost of living, family and kinship ties, and lessening discrimination at the hands of white people.
I hope that this helps you.
A;yssa Hill :)