Before Christianity... before Judaism..

[WinterHold]

There is no more evidence for "abraham" than there is for "moses," "jesus," "mohammed," or the "man in the moon."

You don't get to define one fictional character by piously referring to another.

Actually Mohammed's grave is in Al-Madinah now, next to that his companions, there is also a mass grave for the fallen at the battle of Uhud, the place called "al-baqee".

I have seen those places myself, it's hard to say the Mohammed is a fictional character since his grave does exist, and all the people from his time are also there, with almost a unique known grave for each of them.

You can make sure by trying to attack his grave but the road is full with ..