Yes that is where you look, the old fashioned way, books! As rare they are the best you find, names first clues and books.
Not fake books and remember most histories were lost, so some things are just made up. The dark were dark as in there was a lot of sickness and lots of death, so isolation was really part of life for a long time. The works that were made to make the rich feel good later aren't good, they were forgeries so they could say they had found something lost.

Books were lost they were hidden, the conspiracies that came about were more from late 1600s to today. What people call enlightened period, what they really should say is they started following the one that fell Lucifer or Satan.

As they say, the biggest conspiracy was the Devil inconveniencing people he doesn't exist, and he doesn't have horns, the Catholic Church Religion put that one out.

God has always showed himself, it is life, Satan is the death of the spirit of good in man.