The First Humans<br />Theories on prehistory and early man constantly change as new evidence comes to light. - Louis Leakey, British paleoanthropologist<br />
Geologic Time<br />Earth – 4.5-6 Billion Years old<br />Carbon Dating – When things die they stop absorbing carbon<br />Uranium Dating – Can date things much older than carbon<br />
Geologic Time<br />1 Billion Years ago – First life<br />65 million years ago – Dinos lived<br />4 million years ago – First “human like” creatures – Lucy<br />1,750,000 First Human – “Cavemen”<br />6,000 years ago first civilization<br />
Stages of Early<br />Human Development<br />1. 4,000,000 BC – 1,000,000 BC<br />Paleolithic Age:( Old Stone Age )<br />2,500,000 BC to 8,000 BC<br />2. 1,500,000 BC -- 250,000 BC<br />3. 250,000 BC – 30,000 BC<br />4. 30,000 BC -- 10,000 BC<br />
STAGES OFDEVELOPMENT<br />1. Australopithecus – “Lucy”<br />4 Million years ago<br />Early Hominid – 4 ft tall<br />2. Homo Habilis – Human with abilities<br />1.5 million years ago<br />3. Homo Erectus – Walks Upright<br />4. Homo Sapien – Person who thinks<br />
Stage 1<br />4,000,000 BC – 1,000,000 BC<br /><ul><li>Hominids --> any member of the family of two-legged primates that includes all humans.
Gradual shift from:</li></ul>Nomadic lifestyle--> settled, stationery lifestyle.<br />Hunting/Gathering --> agricultural production and domestication of animals.<br />*Jewelry worn<br />
The Agricultural Revolution<br /><ul><li>8,000 BC – 5,000 BC
Agriculture developed independently in different parts of the world.
Shift from food gathering to food production</li></ul>Middle East India Central America China Southeast Asia<br />8,000 BC 7,000 BC 6,500 BC 6,000 BC 5,000 BC<br />
AGRICULTURAL REVOLUTION<br />Domestication – adaptation of plants and animals for use. (crops, pigs, cattle, goats)<br />Used ashes, fish and manure for fertilization<br />People’s diets improved with domestication <br />Will eventually be too much of a good thing.<br />