Op, this may not be what you are looking for, but it's a place to start. If you want a true history, you will need to temporarily discard your current belief system in order to read authors of ancient literature in the areas of the occult, native, gnosis, Sumerian, etc, although you will certainly find many of the ancient biblical texts here.

You do not need to believe in what you are reading if it goes against your grain, but without this knowledge you can't learn much of our history.

This first link will provide many other links, as well. Each article is well documented. It is a compilation of literature available on the internet, although no site is comprehensive.

[link to www.bibliotecapleyades.net]
[link to www.halexandria.org]
[link to www.hermetics.org]
[link to www.crystalinks.com]

But if you want the real scoop, I think you have to break into the Vatican's library :)