Why humans left their African homeland 80,000 years ago

The Great Human Migration

80 kya

Seventy-seven thousand years ago, a craftsman sat in a cave in a limestone cliff overlooking the rocky coast of what is now the Indian Ocean. It was a beautiful spot, a workshop with a glorious natural picture window, cooled by a sea breeze in summer, warmed by a small fire in winter. The sandy cliff top above was covered with a white-flowering shrub that one distant day would be known as blombos and give this place the name Blombos Cave.

The man picked up a piece of reddish brown stone about three inches long that he—or she, no one knows—had polished. With a stone point, he etched a geometric design in the flat surface—simple crosshatchings framed by two parallel lines with a third line down the middle.

Today the stone offers no clue to its original purpose. It could have been a religious object, an ornament or just an ancient doodle. But to see it is to immediately recognize it as something only a person could have made. Carving the stone was a very human thing to do.

The scratchings on this piece of red ocher mudstone are the oldest known example of an intricate design made by a human being. The ability to create and communicate using such symbols is one of the characteristics that separate modern man from any other species, living or extinct

And soon Holmes and Family spread across the Valley➡Migration (prehistory)
Homo sapiens began migrating into the lower latitudes of East Asia by at least 70,000 years ago

Along the way, some of them interbred with archaic humans, including both Neandertals and Denisovans.

Genetic markers from these archaic human populations are found in the gene pool of some Southern Chinese, New Guinean, and other Micronesian Island populations today.


B) 50,000 

Homo sapiens from Southeast Asia travelled to Australia by 46,000 years ago and possibly as early as 60,000 years ago. Because Australia was not connected to Southeast Asia by land, it is probable that these first Australian Aborigines arrived by simple boats or rafts. Modern humans reached the Japanese Islands by 30,000 years ago or somewhat earlier.



The earliest H. sapiens (AMH) found in Europe are the “Cro-Magnon” (named after the site of first discovery in France), beginning about 40,000 to 35,000 years ago. These are also known as “European early modern humans” in contrast to the preceding Neanderthals.

Around 35,000-30,000 years ago, Homo sapiens big game hunters moved into Northeastern Siberia. Some of them migrated into North America via the Bering Plain, or Beringia click this icon to hear the preceding term pronounced, by 20,000-15,000 years ago

The Bering Plain intercontinental land connection appeared between Siberia and Alaska as a result of sea levels dropping up to 450 feet (137 m.) during the final major cold period of the last ice age.

Until that time, all human evolution had occurred in the Old World.

20,000 -15,000 refugia in arabia and around med sea  .. LGM

16,000-11,000 years ago: Caucasian Hunter-Gatherer (Caucasoid phenotype) expansion to Europe


Through the following years

Their family thrived on the entrails and left overs of religion

Each became biblically acquainted with the other