The document discusses several topics related to history, science, and trade. It examines what constitutes history and how humans have evolved over time according to different theories. It describes a global catastrophe that occurred in 535 AD and affected many parts of the world. The interpretations of America's past have changed over time, as historians have realized the Americas supported more people and a more intricate ecosystem prior to European arrival. The document also discusses how exploration and trade expanded globally following Christopher Columbus's voyage and how China's use of silver currency impacted five continents.

1. Theme 1: History, Science, and TradeAlyssa MillsapHistory 140

2. What is history?History is what has shaped our world into what it is today. Without history, we’d have no knowledge of what things were like before our time, thus we could have no progression.Something cannot be considered history if there is no proof or evidence of it being true or not true.

3. What is history?The three components to determining if something is history or not are:1) reliable witness, 2) logical possibility, and 3) observable causes and effects.

4. The Journey Of ManFor centuries people have argued on where humans have come from. The truth is we don’t know. Dr. Wells had made some suggestions and was able to trace modern humans to one tribe. According to him, we are all related.There is a general agreement that Homo Erectus evolved in Africa and gradually expanded to Eurasia beginning about 1.7 million years ago.

5. The Journey Of ManAccording to Dr. Wells, the six billion inhabitants of the earth today are relatives, descendant from the modern San Bushmen of sub-Saharan Africa.Many archaeologists disagree, saying the fossil record shows that a first wave of migration occurred around 100,00 years ago. Dr. Wells had made some suggestions and was able to trace modern humans to one tribe.

6. CatastropheGlobal history is important to know because with the knowledge of understanding how and why certain events occurred, scientists today can use technology to try to manipulate the situation so that another world wide catastrophe doesn’t take place. The worlds climate changed for the worst around 535 A.D.

7. CatastropheThe catastrophe effected countries around the world such as Turkey, Italy, Korea, Japan, and China.For years, no one knew what caused the great Catastrophe. Ice cores, tree rings, carbon fourteen dating helps scientists conclude the meaning of the catastrophic events.

8. Changing Interpretations of America’s PastFaced with such stories, historians have long wondered how many people lived in the Americas long before it has become what it is today. How America is interpreted today is different compared to what it has been long ago.Much of the environmental movement is animated. William Denevan, a geographer at the University of Wisconsin, calls, polemically, “The pristine myth the belief that the Americas in 1491 were an almost unmarked land.”

9. Changing Interpretations of America’s PastOver centuries the burning from the Indians created an intricate ecosystem of the fire adapted plant species dependent on native pedophilia, which started the change of Americas. So many epidemics occurred in the Americas, the old data used by Mooney and his succesors represented populated nadirs.

10. The World and TradeThe discovery of the world was all very new during the 1400’s. This was a time of exploration to view the world. The new world and the history of trade are what defined these times as the voyage. The discovery of the world resulted in trade throughout the globe.The realization that the earth is a globe did not originate until Christian Europe had inherited this idea from classical Greece.

11. The World and TradeChristopher Columbus’s voyage encouraged others to venture out. Examples are; the grand tour to Europe, Turkey to Africa, South Asia, China and Japan, the Western Hemisphere, and the voyage led by Juan Rodriguez.When fifteenth century China began replacing depreciated paper and copper currency with silver, it set into play forces that would affect remote people on five continents.