Answer:
Solutrean Hypothesis, Hope this helps :]
Buffalo Soldiers originally were members of the U.S. 10th Cavalry Regiment of the United States Army, formed on September 21, 1866, at Fort Leavenworth, Kansas. This nickname was given to the "Negro Cavalry" by the Native American tribes they fought in the Indian Wars.
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number 5
The document that contains a long list of grievances and complaints against the King of England is known as the Declaration of Independence. There were 18 grievances in total.