[Mar raises a finger, pleased by the question.] An excellent question which is impossible to answer! To all appearances this is Azeroth, but even if it is the Azeroth I come from, it is some ten thousand years in the past. We also have to consider that Azeroth is a world that has been slapped around so hard by massive magical and supernatural events, including time travel. It has branched into different possible futures and temporal dead ends before, thanks to the constant warring of the Bronze and Infinite Dragonflights across time and space.