An excellent idea, but I fear it might be somewhat problematic in some cases.

A few words I'd like to see are;

Christianity: ( I am aware that certain types of fundamentalists aren't exactly the majority, so perhaps we should clarify what in general is meant with this. )
Creationism: ( especially in context of the big bang's 'created out of nothingness' vs. 'divine creation' )

There's probably some more..