Being as I've never seen the original Arabic version of the document, I can accept that the article won't or probably doesn't exist.
However, I think you missed my point. Regardless of whether it's bound by law, it'd still indicate the signers' stance(s) that this isn't a christian nation, or that they didn't want it to be viewed as such. But, again, if it doesn't exist, then it doesn't exist.
Additionally, I've read and been told several times that dating something as being "in the year of our Lord" has no real religious significance.
woohoo college! And to that last statement, even if it did have some sort of religious significance, there are multiple religions with multiple lords; nothing points towards Christianity in general though.