I'm not so sure I buy this whole the world will end junk. The mayans said that the 4th world will come to an end and the 5th will begin. Now if this means all life will be wiped out or just a new era starts i don't know. But it is proven that the magnetic poles will change because the earth will pass through the center of the galaxy and, in theory, the whole world will turn on its axis. Since the last time this happened was 50,000 years ago, there is no accounted recorded information on this so we have no idea what to expect. I think the mayans knew what they were talking about though because they predicted Hitler, the civil war, and the terrorists attacks on the right dates so they must have had something guiding them. Whether it was God, the stars, or something else, I don't know. But they were on to something when they made their calendar.