1. The document discusses how historical events are interconnected and can have unintended consequences. For example, Columbus' voyage that established trade routes between Europe and the Americas unexpectedly led to large migrations that introduced diseases devastating native populations. 2. Volcanic eruptions in the 6th century disrupted climate patterns in Europe, which may have contributed to the fall of the Roman Empire. 3. When European settlers arrived in the Americas, they found many abandoned villages that had likely been depopulated by disease epidemics that killed large numbers of native peoples who lacked immunity. This dramatically altered the settlement of the Americas.

1. Theme 1. History, Science, and TradeBy: Jeffrey Phongsamran

2. ConclusionIts important to keep history alive so we can learn and improve the present and past

3. Everything has an affect on history. Civilizations have been created and destroy by to trade, climate, and disease.

4. Had Columbus not been motivated to establish trade routes , he may not have visited the western hemisphere leading to large waves of migration from Europe to the new world.

5. Had the climate in the 6th century been more favorable, Rome may have been around for a longer period of time

6. Had the natives of America and South America not been hit with an epidemic disease, settlers may not have survived or been able to settle in the western hemisphere.What is History?History is Story, a collection of events from writings, paintings, and songs.

7. Historical facts are based on at least two sources:

8. (1) Witness from the event.

9. (2) Recordings by someone gathering information from other witnesses and recordings.

10. Because of conflicting views and limited sources of recordings or physical evidence, it’s important to verify facts before interpreting them. Any story can be edited or fictionalized.

11. Historical Proof comes from:

12. (1) Reliable witness