I'm not much of a historian, but I believe that if you take a good look at history, most initial technological advances, understandings in science, formation of governments, religions, most everything we associate with the so-called "modern day world", including civilizations themselves, have occurred or initiated themselves in the northern hemisphere of the Earth. I haven't researched it, but I believe the greater percentage of the global population lives north of the equator. The question is, if all this happened in the southern hemisphere instead, would we see maps of the world "upside-down", globes with Antarctica at the "top", drawings of the planet, again, "upside-down" in space? Because really, there is no "top" to the Earth. To take apart a globe and mount the Earth "upside-down" in its frame, really does not in any way detract from the accuracy and usefulness of that globe. It is still a legitimate representation of the Earth, and the position in my be observed from in space.