It was primarily "the recognition of treaty rights" and "Native American self-government" that prompted the Native American Civil Rights Movement, since many Natives were not being respected at all by the US government.
<span>A shift in the gold trade is what led to a decline in Great Zimbabwe
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The answer to your question would be Death.
Corroborating sources allows a historian to increase the reliability of the information at hand. Having multiple sources in agreement makes it less likely for discrepancy
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