Many white Americans left the cities in what was called "white-flight" and moved into the suburbs. As well, over 5 million southern African Americans migrated into inner cities.
How Did Cities Change In The 1950s?
ArcheanThe period that begins about 800 million years after Earth formed and lasted for about 1.4 billion years.
ExtinctionThe death of an entire species.
HadeanThe first period in Earth's history, so named because it was thought to be like Hades.
Mass extinctionWhen a large percentage of all known living species die out in a relatively short amount of geologic time.
MesozoicThe second most recent era on the geologic time scale, spanning from 245 m.y.a. To 65 m.y.a; often called the "Age of Dinosaurs."
outgasTo release gas.
PaleozoicThe geologic era from 570 m.y.a. To 245 m.y.a. That is characterized by an explosion of life.
PrecambrianThe geologic era that spans from the formation of Earth around 4.5 b.y.a. To about 544 m.y.a.
ProterozoicThe third, and last, period in the Precambrian, that lasted nearly 2 billion years.
StromatolitesSedimentary layers formed by micro-organisms.
ExtinctionThe death of an entire species.
HadeanThe first period in Earth's history, so named because it was thought to be like Hades.
Mass extinctionWhen a large percentage of all known living species die out in a relatively short amount of geologic time.
MesozoicThe second most recent era on the geologic time scale, spanning from 245 m.y.a. To 65 m.y.a; often called the "Age of Dinosaurs."
outgasTo release gas.
PaleozoicThe geologic era from 570 m.y.a. To 245 m.y.a. That is characterized by an explosion of life.
PrecambrianThe geologic era that spans from the formation of Earth around 4.5 b.y.a. To about 544 m.y.a.
ProterozoicThe third, and last, period in the Precambrian, that lasted nearly 2 billion years.
StromatolitesSedimentary layers formed by micro-organisms.