Historical Introduction

[atralux_lucis]

Right, im new to this whole spiritual satanism stuff, but very much curious about it, because alot of its ideas of cosmic energy manipulation, and aspiration to godhood, reflects many of my own beliefs.
I am a Satanist as put forward by LaVey. I follow all of its principles of individuality, reason, and respect of the vessel and indulgence.

Just first off I'd like to ask, is there any proof of Satan's existence? I understand that people have claimed to speak to him but could that be elaborated to be a little more reasonable cos at the moment it sounds a bit like crazy people.

Also what evidence is there that Satanism predates, what i'll say ,jewish religion (being the basis of christianity)?
Where was it and when was it?

And is there a published book that holds the beliefs and such of this satanism?