White flight, also known as white exodus, refers to the sudden or gradual large-scale migration of white people from areas becoming more racially or ethnoculturally diverse to more racially homogenous
Urban decay in the US: the South Bronx, New York City, was exemplar of the federal and local government's abandonment of the cities in the 1970s and 1980s; the Spanish sign reads "FALSAS PROMESAS", the English sign reads "BROKEN PROMISES".