Answer:
Increase in population and desire to search for land
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.
I believe it is unemployment. I think GDP and unemployment are the two main factors in the business cycle.
Burgoyne's surrender followed battles with American General Horatio Gates near Saratoga in September and October 1777. With the British losing men and defenses during both engagements, Burgoyne retreated with a weakened army to Saratoga, where he surrendered to General Gates.
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