The main cause of the Great Migration to the United States in the late 1800s and early 1900s was economic opportunities. Many people came to the United States from countries experiencing poverty, famine, and war, in search of better job opportunities and basic necessities of life. Other factors included political and religious persecution, desire for freedom, and the United States being seen as a land of opportunity and freedom. Additionally, improvements in transportation and communication made it easier for people to move from their home countries to the United States.
