Hi Brainiac
While the space race was in action United States landed the first humans on the moon
I hope that's help:0
Answer:
The Treaty of Paris was signed in Paris, France on September 3, 1783. This ended the American Revolutionary War, and gave the colonies their independence from Great Britain. They could now form their own government and make their own laws. This freedom was the most important effect of the American Revolution
I believe that the primary reason was guns since the Incas were unarmed

Nelson Mandela was in prison for 27 years.
He wrote the book long walk to freedom.
Thanks