What did settlers bring to america indian lands in the west?

Although the discovery and settling of these new lands, this new continent, brought many positive things to Europe, such as new crops, like potatoes, that saved European countries from famine at some points, to America, it also brought the introduction of diseases for which the American Indians from South and North.

Although the discovery and settling of these new lands, this new continent, brought many positive things to Europe, such as new crops, like potatoes, that saved European countries from famine at some points, to America, it also brought the introduction of diseases for which the American Indians from South and North

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