2. THE JOURNEY OF MAN A documentary where Spencer Wells goes to Africa to begin the journey of humans Blood contains the greatest history book of the human species. Blood is the time machine that reunites us with our ancestors by the way of DNA DNA was discovered in the 1950s All humans came from Africa. Only ten thousand lived back there, we are all their children.
3. THE JOURNEY OF MAN All our ancestors came from the same tribe. All humans had the same language back then that used “click” sounds. Language was responsible for all advancements in human behavior Eventually our ancestors began to spread out. The reasons are unknown but many are speculated. Climatic Changes were a major part of early human migration The next destination for the descendants of the Bushmen was Australia Humans passed through India before reaching Australia Next Humans from Africa left for the Middle East From the Middle East Humans migrated to Southern Central Asia, Europe, Russia, From Russia Humans crossed over to Alaska and the Americas Skin got paler in order to absorb more light and absorb more vitamin D All humans are African under the skin
4. CATASTROPHE! David Keys goes on a journey to discover the catastrophe that happened on Earth On 535 AD all the climate on Earth changed Was intensely cold for 2 years Unusual climate conditions on Earth occured
5. CATASTROPHE! Tree rings reveal that a major event occurred on all of earth at the same time Three possibilities for this were: comets, asteroids or volcanoes Evidence proved that the event wasn’t caused by an outer space force but by a volcano The Krakatoa erupted The event was devastating for all living creatures on earth
6. GUNS, GERMS AND STEEL Four environmental features that affect 1st differences in wild animals and plants 2nd rates of diffusion and migration 3rd diffusion between continents 4th differences in area and population
7. GUNS, GERMS, AND STEEL The book Guns, Germs and Steel tries to make the point that these four factors matter. We can look at past societies to see how they were affected and also try and predict future problems and outcomes. Guns, Germs and Steel was published in 1997
8. THE COLUMBIAN EXCHANGE The Columbian exchange is the major exchange between foods, plans and animals between the old world and the new world Diseases were also an unfortunate exchange between the two Horses changed the way people in the Americas moved
9. THE COLUMBIAN EXCHANGE Christopher Columbus discovery of the Americas was an accident but also the biggest trade revolution in human history. Europeans were motivated for gains in money and pride Religion was also a major motivating force Europeans migrated to the Americas
