Religion
A method that Ancient Monarchs concocted to control a cult population of People. Where some religions are passive, many religions are very violent and disturbing, but its followers ignore those parts. I guess you can call it brain-washing, to an extent, like really, do you think that a virgin could give birth to a baby? and that Mohammad saw the angel Gabriel and it told him to go to the city of Mecca. Honestly, people need to come to their senses. Catholics take orders from a pedifile who believes he's "a servant of god" when really he's just as bad as the rest of us. Religion is bascially a passive system of having control over a population of human beings. I am not anti- religion. or Anti Jesus,or anything. I am just saying, its a little far fetched.
Watch the Movie "Angels and Demons with Tom Hanks

Or, read ANY book about the renissance, play the game Assassin's Creed, or even. Just think for yourself. It'll all make sense to you eventually.

I AM NOT ANTI RELIGION. My family members are baptized christian, and i am an observant agnostic...