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An estimate on the "total number of people who have ever lived" as of 1995 was calculated by Haub (1995) at "about 105 billion births since the dawn of the human race" with a cut-off date at 50,000 BC (beginning of the Upper Paleolithic), and inclusion of a high infant mortality rate throughout pre-modern history. [13]
A paper published in March 2013 determined that, with 95% confidence and that provided there are no systematic errors in the study's data, Y-chromosomal Adam lived between 237,000 and 581,000 years ago. [7] [8] The MRCA of all humans alive today would, therefore, need to have lived more recently than either. [9] [note 2]
A recent study (March 2013) concluded however that "Eve" lived much later than "Adam" – some 140,000 years later. [50] (Earlier studies considered, conversely, that "Eve" lived earlier than "Adam".) [51] More recent studies indicate that it is not impossible that Mitochondrial Eve and Y-chromosomal Adam might have lived around the same time. [52]
The total number of humans who have ever lived is estimated to be approximately 100 billion. Such estimates can only be rough approximations, as even modern population estimates are subject to uncertainty of around 3% to 5%. [13] Kapitsa (1996) cites estimates ranging between 80 and 150 billion. [146]
Human history is the record of humankind from prehistory to the present. Modern humans evolved in Africa around 300,000 years ago and initially lived as hunter-gatherers.They migrated out of Africa during the Last Ice Age and had spread across Earth's continential land except Antarctica by the end of the Ice Age 12,000 years ago.
C. L. Moore's 1940 story Fruit of Knowledge is a re-telling of the Fall of Man as a love triangle between Lilith, Adam and Eve – with Eve's eating the forbidden fruit being in this version the result of misguided manipulations by the jealous Lilith, who had hoped to get her rival discredited and destroyed by God and thus regain Adam's love.
Beginning with Adam, genealogical material in Genesis 4, 5, 10, 11, 22, 25, 29–30, 35–36, and 46 moves the narrative forward from the creation to the beginnings of the Israelites' existence as a people. [citation needed] Adam's lineage in Genesis contains two branches: Chapter 4 giving the descendants of Cain, and Chapter 5 that for Seth ...
This date also meant that Y-chromosomal Adam lived at a time very close to, and possibly after, the migration from Africa which is believed to have taken place 50,000–80,000 years ago. One explanation given for this discrepancy in the time depths of patrilineal vs. matrilineal lineages was that females have a better chance of reproducing than ...