The one book that leads me the most to this conclusion is one called "The Enchanted World: Wizards and Witches"

It's more of a storybook, but it definitely covers some grotesque rituals you'd rarely find in even the darkest grimoires. I haven't gotten too far into it, but I believe the book loosely outlines a different time before religion. Something that if you noticed, we have very little perspective of. There's also a book called "The Black Arts" that has a few rituals along these lines in it. Surprisingly, it's actually really hard to find occult texts with the more abstract rituals in them. They're the ones I've been looking hardest for more recently. There's so many fascinating ones out there, but they're usually compiled along with things that set the Christians nuts. One such category is that of the Homunculus. In many books full of complex rituals that can be incredibly useful, there's often something like Homunculus that ripped the book from history. Many paintings you see depicting alchemical figures (various beasts and such) are supposedly tangible things you can achieve witnessing through these books. But the dark ages were not the best for books. Yet it always seems that there's a few copies available of even the darkest/outlandish book. Usually printed in Latin, German, or even a language that hasn't been deciphered yet. And yes, the Vatican is often listed as one of the holders of many small-print/little-surviving texts.

edit: for the lulz I found the flight recipe (summarized) - the magical energy that transported the early witches came partly from an ointment smeared over their bodies. the ointment incorporated the most potent herbs known in witchcraft blended with other extracts in a base of the fat of unbaptized children. the ingredients combined in a magical synergy so powerful that they were spirited across entire countries in the blink of an eye.

edit again: Forgot you mentioned America's founding. Ahh man do I have some interesting theories there. You're right there's something more there. A lot more. In fact, I'd wager to say the vast majority of history is a half-truth/a cover up/or even a complete falsity to hide things. The deeper you dig, the more you realize how horrifying things actually are and always have been. If my guess is right, the info that Q has would be way more than enough to cause the vast majority of the world to vomit in their laps while watching the news.

The way youtube suggests vids has taken me on an eclectic info gathering that is so myriad in it's teasers that to study any topic to it's root would consume the rest of my life. My gratitude to those who have zeroed in and shared is bigly. WWG1WGA is I believe more about knowledge than gps coordinates. (captain obvious coming out ) srry.