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Push and pull factors in migration according to Everett S. Lee (1917-2007) are categories that demographers use to analyze human migration from former areas to new host locations. Lee's model divides factors causing migrations into two groups of factors: push and pull.
Studies show that the pre-modern migration of human populations begins with the movement of Homo erectus out of Africa across Eurasia about 1.75 million years ago. Homo sapiens appeared to have occupied all of Africa about 150,000 years ago; some members of this species moved out of Africa 70,000 years ago (or, according to more recent studies, as early as 125,000 years ago into Asia, [1] [2 ...
Human migration is the movement of people from one place to another, [1] with intentions of settling, permanently or temporarily, at a new location (geographic region). The movement often occurs over long distances and from one country to another (external migration), but internal migration (within a single country) is the dominant form of human migration globally.
Population exchange is the transfer of two populations in opposite directions at about the same time. In theory at least, the exchange is non-forcible, but the reality of the effects of these exchanges has always been unequal, and at least one half of the so-called "exchange" has usually been forced by the stronger or richer participant.
Illustration from a 1916 advertisement for a vocational school in the back of a US magazine. Education has been seen as a key to social mobility and the advertisement appealed to Americans' belief in the possibility of self-betterment as well as threatening the consequences of downward mobility in the great income inequality existing during the Industrial Revolution.
Geographic mobility is the measure of how populations and goods move over time. Geographic mobility, population mobility, or more simply mobility is also a statistic that measures migration within a population.
West-Eurasian back-migrations started in the early Holocene or already earlier in the Paleolithic period (30-15kya), followed by pre-Neolithic and Neolithic migration events from the Middle East, mostly affecting Northern Africa, the Horn of Africa, and wider regions of the Sahel zone and East Africa. [140]
Although the negative labels that immigrants were given during the first half of the twentieth century influenced their actions in society and self-perceptions (known as labeling theory in sociology), immigrants now began to assimilate more easily into society and to form strong social networks that contributed to their acquisition of social ...