Christianity is not a religion. It is a group name for the all the spin offs from Catholicism starting in 323AD, at the council of Nicea I believe, when the Greek Authodoxy started.
And no I'm not a religious nut case, I got this from studying history.

And by the way @DaveSchumacher it is all crazy bullshit, you should hear the reason why the church split in the first case

"This is crazy bullshit, people!"
Isn't that the actual deffinition of relgion?

I kind of like how an atheist in a viedeo I watched referred to the bible as "The Goat Herders Guide To The Universe". I thought that really put the book into perspective.

Technically Christianity, like all religions, started off as a cult, it only falls under the category of a religion due to its ceaseless ministry work and brutal, bloodthirsty conversion tactics. Also Jesus wouldn't be a zombie, he'd be classified a lich as he didn't have an affinity for eating other flesh, he possessed necromancy and sorcerous capabilities and was a human soul magically bound to a reanimated corpse.