White flight has been a term that originated in the United States, starting in the mid-20th century, and applied to the large-scale migration of whites of various European ancestries from racially mixed urban regions to more racially homogeneous suburban or exurban regions. It was first seen as originating from fear and anxiety about increasing minority populations. The term has more recently been applied to other migrations by whites, from older, inner suburbs to rural areas, as well as from the US Northeast and Midwest to the milder climate in Southeast and Southwest, but this is a change from its original cause and meaning.

The term has also been used for large scale post-colonial

Decolonization

Decolonization refers to the undoing of colonialism, the unequal relation of polities whereby one people or nation establishes and maintains dependent Territory over another...

 emigration of whites from Africa.

Following World War II

World War II

World War II, or the Second World War , was a global conflict lasting from 1939 to 1945, involving most of the world's nations—including all of the great powers—eventually forming two opposing military alliances: the Allies and the Axis...

, there was pent-up housing demand in the US, and widespread suburban development took place.