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315,000 Years Ago
The earliest known humans emerge and live on the African continent.
All human beings today belong to the Homo sapiens species, and it is widely accepted amongst researchers, historians, and scientists, that all of human history began on the continent of Africa. The exact location in Africa is a topic of constant debate as remains have been found in various locations throughout the continent, such as Ethiopia, Kenya, and Morocco, though researchers suggest it was most likely in the Horn of Africa. The oldest known remains of our species to date has been found in Jebel Irhoud, Morocco and dated about 315,000 years ago.
250,000 Years Ago
Modern humans begin to disperse and migrate out of Africa.
Early modern humans expanded to Western Eurasia and Central, Western and Southern Africa from the time of their emergence. Evidence of migration out of Africa, via a partial skull, was discovered in the Apidima Cave in southern Greece and is dated more than 210,000 years old. There were several waves of migrations, many via northern Africa and the Arabian Peninsula about 130,000 YA (Years Ago), though most of these early waves appear to have mostly died out or retreated by 80,000 YA.
c. 200,000 - 130,000 Years Ago
Mitochondrial Eve, the most recent woman from whom all living humans descend, lives in Sub-Saharan Africa.
Mitochondrial Eve (the name alludes to the biblical Eve) is the matrilineal most recent common ancestor of all living humans. In other words, she is defined as the most recent woman from whom all living humans descend in an unbroken line purely through their mothers and through the mothers of those mothers, back until all lines converge on one woman. In 1987, geneticists compared the mitochondrial DNA (genetic information passed from mothers to their offspring) of people from different populations around the world and find that they all link in an unbroken line to Mitochondrial Eve. This does not mean that she was the first woman, nor the only living female of her time, nor the first member of a "new species." It only means that she is the most recent female ancestor to which all living humans are linked. She was believed to have lived in either East Africa or Botswana.
c. 10,000 BC - 6,000 BC
Due to a tilt in the Earth’s axis, the Sahara transforms from a humid region rich with grasslands and water, to an arid desert, prompting Saharan Africans to migrate to the Nile Valley.
The earliest Egyptians were indigenous Africans who were drawn to the Sahara when it was a humid region rich in grasslands and with plentiful water. There was a widespread Saharan Neolithic culture. However, during this same period (c. 10,000 - c. 6,000 BC), the Earth's axis tilted, causing the Saharan climate to slowly transform from humid to arid, prompting Saharan Africans to migrate to the Nile Valley to take advantage of its fertile floodplains.
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Home / Full timeline / The Bureau of the Census reports that the long standing trend of Blacks moving from the South to the North and West reversed in the 1970s.

The Bureau of the Census reports that the long standing trend of Blacks moving from the South to the North and West reversed in the 1970s.; ?> The Bureau of the Census reports that the long standing trend of Blacks moving from the South to the North and West reversed in the 1970s.

1983 (Aug 21)

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The Bureau of the Census reported that "the traditional migration of Blacks from the South to the urban center of the North and West ended" in the 1970s. "Between 1975 and 1980, about 415,000 Black moved to the South, whereas (in the more recent period) only about 220,000 left, thereby reversing the longstanding Black exodus from the South.” In 1980, 53 percent of the nation's Blacks lived in the South—the same proportion as in 1970, yet approximately 60 percent of the nation's Black population lived in central cities—an increase of approximately 13 percent. The new demographic data was contained in a report entitled "America's Black Population: 1970 to 1982." It was based on data from the Census Bureau, the U.S. Labor Department, and other governmental agencies. The Census Bureau's report also noted that: 1) The number of Blacks in the civilian labor force increased by 2.7 million or 31 percent between 1972 and 1982, and the number of employed Blacks grew by 1.4 million, or 19 percent. However, the number of Blacks who were unemployed rose 140 percent, from 900,000 in 1972 to 2.1 million in 1982. The unemployment rate for Blacks continued at more than double the rate for Whites. In 1972, when the unemployment rate for Whites was 5 percent, the unemployment rate for Blacks was 10.3 percent. In 1982, the unemployment rates for both Blacks and Whites were the highest for any period since the second World War. 2) The median income for Black married couples increased 6.9 percent between 1971 and 1981. Such families, however, made up only 55 percent of all Black families in 1982, compared with 64 percent in 1972. 3) For all Black families, median income, after adjustment for inflation, declined by 8.3 percent since 1971, with a 5.2 percent drop occurring between 1980 and 1981. This decline was attributed to the increase in the number of single-parent Black families headed by females. In 1982, these families totaled 2.6 million—up 32 percent from 1972. Female-headed households made up 41 percent of all Black families and 70 percent of all poor Black families. 4) The poverty rate for Blacks remained steady at 34 percent, though there were one million more poor Blacks in 1980 than in 1970—nine million compared with eight million.

References:

  •  • Hornsby, Alton. Chronology of African-American History: Significant Events and People from 1619 to the Present. Detroit: Gale Research, 1995.
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