Well, even if you really don't know, history tells us.
It's called the *Inquisition*.
not a history buff, are you??? The inquisition was an absolutely normal human response to what people, at the time, saw as an attact on the truths of Christianity. A group of Christians, Catholics, who, up until then were the only Christians on earth saw a threat to their Christian beliefs and reacted accordingly. To protect the christian religion, they attacked the interlopers....kind of like the crusaders attacking the enemy at that time, the muslims.