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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]
The timeline of human evolution outlines the major events in the evolutionary lineage of the modern human species, Homo sapiens, throughout the history of life, beginning some 4 billion years ago down to recent evolution within H. sapiens during and since the Last Glacial Period.
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]
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.
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]
It has been argued that human evolution has accelerated since the development of agriculture 10,000 years ago and civilization some 5,000 years ago, resulting, it is claimed, in substantial genetic differences between different current human populations, [209] and more recent research indicates that for some traits, the developments and ...
Cave paintings (such as this one from France) represent a benchmark in the evolutionary history of human cognition. Victorian naturalist Charles Darwin was the first to propose the out-of-Africa hypothesis for the peopling of the world, [39] but the story of prehistoric human migration is now understood to be much more complex thanks to twenty-first-century advances in genomic sequencing.
God places the first man and woman (Adam and Eve) in his Garden of Eden, whence they are expelled; the first murder follows, and God's decision to destroy the world and save only the righteous Noah and his sons; a new humanity then descends from these and spreads throughout the world, but although the new world is as sinful as the old, God has ...