First modern humanity interaction with demons and magic was a demon called baphomet appearing to nine knight templars guiding them to dig in certain locations in jerusalem .. the books of black magic made them the most evil and rich organization .. they were commiting black magic rituals with sacrifices, homosexulity the whole nine yards until it reached the throne and they got executed .. to preserve their books they converted their secrets into architecture with symbolism that can only be read by them to preserve them thus the name freemasons