"A library outranks any other one thing a community can do to benefit its people. It is a never failing spring in the desert."- AndrewCarnegie
The main impact De Soto's expedition was disease.The Native Americans did not have any immunity to European diseases since they had never been in contact with them. The most detrimental of illness was the smallpox. They also were introduced to animals such as horses, war dogs, and pigs.
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It allowed Southern states to count a portion of its enslaved population for purposes of taxation and representation. The compromise gave the South more power than it would have had if enslaved people had not been counted.
Explanation: