What effect did the introduction of smallpox have in Americas

Smallpox which was contracted from Europeans and Africans, was supposed to have led to the large-scale deaths of Native Americans. Nearly 95% of the Native American population was decimated due to smallpox. It spread to other continents and caused wide-spread deaths throughout the world.

it contributed to the defeat of the American Indians.

Explanation:

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the right answer is the end of world war ii

after the end of a global wwii all the nations involved, in an attempt to create an organization to maintain world peace. this agreement would work settling international disputes via negotiation and arbitration instead of leading the issues escalate to another war.