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A comment on Evidence for European presence in the Americas in AD 1021. Parent comment

Re:Evidence for European presence in the Americas in AD 1021 by coliveira on Wednesday October 20, 2021 @09:33PM (#28939232)
Smallpox only spread in Europe starting in the 15th century. Before that it was known mostly in Asia (China and India). It was probably the increased trade with Asia that was responsible for spreading smallpox in Europe.
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