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  • 1. Brandy Davis
  • 2. The Day the Universe Changed  Humans are constantly seeking answers to the never ending list of questions they have. With every answer they find, another question forms. With every new answer or discovery, their perception of life and the universe change.  For example, Galileo’s discovery that the Earth revolves around the sun and not nice versa completely altered the way people viewed the universe.
  • 3. The Day the Universe Changed  Humans put so much stock in their beliefs that they will fight to the death to defend them.  History is riddled with examples of this. Even to this day we continue to fight for our beliefs.
  • 4. The Journey of Man  Everyone in the world is related to each other. The San tribe is the oldest tribe in the world. Some of the ancestors of the San tribe eventually left Africa to journey out to the rest of the world. Humans went from Africa to Australia to India to China then on to the rest of the world. Humans physical features began to change based on the environment they settled in.  When they went to Europe their skin became light in color because it was not as hot and it did not need to produce so much melanin.
  • 5. The Journey of Man  Spencer Wells tracked the journey of man through a genetic marker only found in the blood of men. Spencer Wells found the specific genetic marker in men through out Europe, Russia, North America, South America, etc.
  • 6. Catastrophe!  During the fifth century there was a catastrophic event that led to dramatic climate change. Through a large number of research done, scientists have deduced that the cause of the climate change was an enormous volcanic eruption. The volcano that is the most likely culprit is Krakatoa which lies between the islands of Java and Sumatra.
  • 7. Catastrophe!  The three main scientific methods used to deduce the source of the climate change were tree ring dating, studying ice cores from the polar ice caps, and carbon dating.
  • 8. Catastrophe!  This catastrophic event snowballed into a very devastating time for human kind. The eruption threw a dense veil of dust, ash or acid into the atmosphere which blanketed out most of the sun. This caused temperatures to drop which in turn led to failure in agriculture. The failure in agriculture led to starvation and social unrest. The cold temperatures also allowed the rat population to grow and in turn allowed the bacteria of the plague to spread. The initial event caused a domino effect and the sum of all of the resulting events played a hand in devastating and/or ending many civilizations through out the world.
  • 9. Guns, Germs, & Steel  Diamond theorizes that Europeans did not thrive above all others because of superior intelligence or genetics but because of better opportunities. The plants and animals in their environment were much better suited for survival.  They had access to barley, two kinds of wheat, and flax for textiles.  They also had access to sheep, goats, and cattle for meat, leather, glue, and wool.
  • 10. Guns, Germs, & Steel  Their grains were much easier to keep for longer periods of time which led to food surpluses, which led to population growth. Their population growth led to larger work forces.  Because of the larger work forces, there were more people to branch out from farming and hunting to other occupations such as crafting and scribing.  These new occupations resulted in an accelerated economy and more technological advances Their advantages in technology allowed them to defeat other civilizations with very little effort.
  • 11. Guns, Germs, & Steel  Living in such close proximity to each other and their domesticated animals caused diseases to spread through out Europe.  Over time Europeans developed immunities to these diseases so that they no longer posed as much of a threat. When Europeans traveled they brought these bacteria and pathogens with them to places that did not have their immunities.  These European diseases decimated man indigenous populations leaving them vulnerable to occupation from the Europeans.