The Columbian Exchange Chapter Summary

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1. In Alfred J. Crosby’s book, The Columbian Exchange, the author examines the impact of the New World on the Old World, but also the impact the Old World had on the New World. One key distinction Crosby notes is how the discovery of the New World by Christopher Columbus challenged the intellectual systems of Christianity and Aristotelianism. Most notably, the discovery of a world that was, in fact, “new” was so contradictory to scholarly work of the past, such as Aristotle or found in the Bible, that assumptions were made on where to fit the New World into a Christian and Aristotelian world. For example, previous findings under Aristotle, which were still utilized into the 15th Century, had “quite logically supposed the equatorial zone of …show more content…

Crosby highlights the importance of blood types in understanding the “biological consequences of 1492” by noting how distinct the populations of North America differ from that in Europe. On page 22, Crosby goes into detail about how blood types do not often change on a continent where there is uniformity. “No change in training, food, climate or anything else can alter an individual’s blood type; and there is no way in which a people of blood type O, for instance, can suddenly start having great numbers of children of blood type B unless there has been an infusion of genetic material from outside the original group.” (Crosby 22) The blood type of the American Indians, according to Crosby, is unique from those of Europeans because people differ based on their origins. Because the ancestors of the Indians crossed the Bering Strait into America, their blood types differed from that of the Europeans. This had a huge impact on the biological consequences of 1492 because, as Crosby notes, “the isolation [of the American Indians in North America] not only hampered the growth of their civilizations, but also weakened their defenses against the major diseases of mankind.” (Crosby 31) Crosby notes how this isolation further distanced the gap between the Europeans and the Indians, one aspect of this being the different blood types of the two groups. This discrepancy would play out with the arrival of the disease, which was brought by Columbus and the other Europeans upon their …show more content…

Crosby, in his chapter regarding syphilis, addresses the controversy surrounding its origins. One theory that Crosby seems to point out is the notion that syphilis may have existed in pre-Columbian Europe. A piece of evidence that Crosby makes mention of is how “neither syphilis nor anything resembling it is mentioned at all in the documentation of the Columbian voyages written prior to the first epidemic of the pox in Europe.” (Crosby 137) This would seem to suggest that the disease had a somewhat presence in Europe, but Crosby refutes the claim, asserting that undocumented information is not a good enough reason to support this theory. One major theory that Crosby describes is the Unitarian theory, or the theory that syphilis evolved over time. The argumentation for this theory is heavily present in Crosby’s book, as he notes how the disease evolved and spread through the armies of Charles VII of France. Because syphilis is a highly transitive disease through sexual intercourse, the fact that many of Charles’s soldiers, following many battles, “engaged in the usual practice of rape and sack” around the mid-1490s, suggests this type of transformation of the disease. (Crosby

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