Why did the Great Migration take place? Large groups of Native Americans were forced off of their land and they moved onto reservations.
Large groups of African Americans moved north to work in the factories of large cities.
Large groups of immigrants left their homeland to move to the United States.
Large groups of Chinese immigrants moved back to China after the railroad was built.

Large groups of African Americans moved north to work in the factories of large cities.

Explanation:

The Great Migration is a process that intensified after the First World War and lasted until the 1970s. Millions of African Americans moved from the south to the north, primarily due to racial segregation and economic factors. African Americans sought to engage in industrial flows, and the need for labour in industrial plants intensified after the First World War.

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