Final answer:
White flight is the migration of economically secure white people from racially mixed urban areas to suburbs. This phenomenon occurred throughout the twentieth century due to diverse causes. Current trends show middle-class African-American families following the patterns of white flight out of cities, while affluent whites are returning to cities with a historically black majority.
Step-by-step explanation:
White flight refers to the migration of economically secure white people from racially mixed urban areas and toward the suburbs. This phenomenon occurred throughout the twentieth century due to diverse causes such as the end of racial segregation and waves of immigration. Current trends show middle-class African-American families following the patterns of white flight out of cities, while affluent whites are returning to cities that historically had a black majority. These trends complicate issues of race, socio-economics, neighborhoods, and communities.