What was the major reason that African Americans migrated to northern cities during and after World War I?

Driven from their homes by unsatisfactory economic opportunities and harsh segregationist laws, many Black Americans headed north, where they took advantage of the need for industrial workers that arose during the First World War.

hope if helpful if not then sorry

the answer is a glaciers carved a large valley that later flooded and became puget sound

explanation:

the president, prime minister, chief justice, speakers and ministers take their oath of office. the oath is taken in bengali