1. The Columbian Exchange: 1492-1750
... included both positive and negative effects on both the human population and the environment. One difference between the two continents is when they first crossed paths, was that the American Natives were at a much higher risk of catching deadly diseases. These diseases included diphtheria, typhus, influenza, whooping coat and many more. On the other hand, the American people only had syphilis. Neither civilizations ... very healthy and nutritious crop, it filled the consumer easily. The horse was brought over by the Europeans. Tat was very impactful since it was the animal of choice for...
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