Illuminati is a secret organization that was formed in the 18th century by radical thinkers in Bavaria. The group was founded by Adam Weishaupt. The intent behind forming it was to abolish monarchies and state religions in Europe and its colonies.
The Illuminati originally were a group of scientists waaaaaaaaaay back when. Basically i f you defied the church in any way and were branded a heretic, you would die. it was a secret society where people would meet and learn in secret so as not to be a heretic. now people say its a group of people who worship the devil.