The Origin of Humans
The First HumansTheories on prehistory and early man constantly change as new evidence comes to light.       - Louis Leakey, British            paleoanthropologist
Geologic TimeEarth – 4.5-6 Billion Years oldCarbon Dating – When things die they stop absorbing carbonUranium Dating – Can date things much older than carbon
Geologic Time1 Billion Years ago – First life65 million years ago – Dinos lived4 million years ago – First “human like” creatures – Lucy1,750,000 First Human – “Cavemen”6,000 years ago first civilization
Early Discoveries
Stages of EarlyHuman Development1.  4,000,000 BC – 1,000,000 BCPaleolithic Age:( Old Stone Age )2,500,000 BC     to 8,000 BC2.  1,500,000 BC -- 250,000 BC3.  250,000 BC – 30,000 BC4.  30,000 BC -- 10,000 BC
STAGES OFDEVELOPMENT1.  Australopithecus – “Lucy”4 Million years agoEarly Hominid – 4 ft tall2.  Homo Habilis – Human with abilities1.5 million years ago3.  Homo Erectus – Walks Upright4.  Homo Sapien – Person who thinks
Stage 14,000,000 BC – 1,000,000 BCHominids --> any member  of the family of two-legged  primates that includes all  humans.
Australopithecines
An Apposable   Thumb“Lucy” – Oldest found
Stage 2HOMO HABILIS( “Man of Skills” )
found in East Africa.
created stone tools.The Paleolithic Age“Paleolithic”--> “Old Stone” Age
2,500,000 BC – 10,000 BC
Made tools
hunting (men) & gathering (women)          --> small bands of 20-30 humans
NOMADIC (moving from place to place)The Paleolithic AgeHumans during this period found shelter in caves.
Cave paintings left behind. Purpose??
Stage 31,6000,000 BC – 30,000 BCHOMO ERECTUS ( “Upright Human Being” )
BIPEDALISM
Larger and more varied   tools --> primitive technology
First hominid to migrate and  leave Africa for Europe and  Asia.
First to use fire ( 500,000 BC )Differing Human Migration TheoriesAre we all Africans “under the skin”????
Stage 4200,000 BC – 10,000 BCHOMO SAPIENS( “Wise Human Being” )Neanderthals( 200,000 BC – 30,000 BC )Cro-Magnons( 40,000 BC – 10,000 BC )“Ice Man”
Stage 4NEANDERTHALS:Neander Valley,   Germany (1856)
First humans to bury   their dead.
Made clothes from   animal skins.
Lived in caves and   tents.Stage 4NEANDERTHALSEarly Hut/Tent
Stage 4CRO-MAGNONs:Homo sapiens sapiens( “Wise, wise human” )
By 30,000 BCE they   replaced Neanderthals.WHY???
Homo sapiens in Europe
The Last Ice Age70,000 BC – 10,000 BC
The Neolithic Age“Neolithic” --> “New Stone” Age
10,000 BC – 4,000 BC
Gradual shift from:Nomadic lifestyle--> settled, stationery                                  lifestyle.Hunting/Gathering --> agricultural production                                     and domestication of                                    animals.*Jewelry worn

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