Europeans carried a hidden enemy to the Indians: new diseases. Native peoples of America had no immunity to the diseases that European explorers and colonists brought with them. Diseases such as smallpox, influenza, measles, and even chicken pox proved deadly to American Indians.
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The act authorized the president to grant Indian tribes unsettled western prairie land in exchange for their desirable territories within state borders (especially in the Southeast), from which the tribes would be removed.
<span>The 19th amendment to the constitution, Nazism, birth control, and Protestantism all have in common is that they are all the products of social movements.
Right for women to give vote passed by congress, is also in the 19th amendment of U.S. So, 19th amendment is also very important in women history. Amendment is an article added to the Constitution of U.S.</span>
