Answer:
the Enlightenment
ancient Greece
Explanation:
Ancient Greece created the concept of democracy, where the people participated directly in the government's choices. Obviously the democracy created in Greece is different from what we see today in the USA, but we cannot fail to point out that the concept created in Greece was very important for the existence of the relationship between the government and the citizens that we see today.
Enlightenment was also very influential in this relationship. This is because the enlightenment reinforced the idea that all citizens should have political knowledge, being then guardians of their rights and freedoms, being able to demand from the government if somehow an implemented policy disrespected them.
Affects it because they are joining together
"The religious pluralism of the United States is most noticeable when people request to have different holidays taken off from work". In this case "pluralism" simply means two more things coexisting.
The Nazi's created concentration camps all over Europe in order to carry out Hitler's "Final Solution." Hitler's "Final Solution" was based around exterminating all European Jews. In order to do this, he developed concentration camps in which systematic killing took place.
These killings took on several different faces. This included extermination chambers, mass shootings, and cremating individuals. These extreme acts of physical violence resulted in the death of millions of European citizens.