Answer:
Tubman decided to help the Union Army because she wanted freedom for all of the people who were forced into slavery, not just the few she could help on the Underground Railroad. And she convinced many other brave African Americans to join her as spies—even at the risk of being hanged if they were caught.
Sapa Inca - The emperor or king of the Inca Empire was called the Sapa Inca, which means "sole ruler". He was the most powerful person in the land and everyone else reported to the Sapa Inca. His principal wife, the queen, was called the coya. Below the Sapa Inca were several officers who helped to rule the empire.
Philosophers and other thinkers had many different ideas and propositions about the possible connection between reason and the physical world. One of them is the one you've posted, however, that doesn't mean it's universally recognized or true.
It was known as The Holocaust, which a Holocaust is where one group of people try to eliminate a certain group of people like how the Nazis tried to get rid of the Jewish people.