Answer:
Nicolaus Copernicus, he first stated that the earth was orbiting around the sun, not the sun orbiting the earth, this made other people to think that Copernicus was indeed crazy, and people killed him because of his statement. Nowadays, this statement is indeed true. However, during this time, people believed and saw different ways of thinking and analysis over religious perspectives and beliefs made people to kill others who thought wrong.
Step-by-step explanation: