There was a scientific revolution. The people started to make conclusions based on experimentation and observation.
Explanation:
The time before the century 16 most people thought that the earth was the center of Universe.
But the searching of the astronomer Nicolaus Copernicus let a shift to the scientific world by the other hand the italian Galilei did help to change the thought of that time.
This was known as the "iron curtain." It was a term used to describe the boundary in Europe, which formed at the end of WWII and lasted until the ending of the Cold War.
