Let me first start off by saying that the belief that on December 21, 2012 the world will end is a New Age belief, which really isn't very in tune with also believing in Christianity. There are actually just as many people, who believe in New Age, that think mankind will be "elevated to a higher level" on this date, instead of ending. Not that I care what that even means.
Here's another fact: despite the Mayan calendar ending on this date, it was never once written that it was the end of civilization. Did you realize that there are actually modern Maya communities in Guatemala? But then I guess they don't use calendars, since their old ones ran out of days, right?
In fact, there are multiple Mayan calendars, some even used today. One calendar had 260-days, one had 365, another had 52, and 20, and one was even 13-days long. Each was simply a cycle that repeated. They tracked Venus on a 584-day cycle. But most interesting of all was their calendar that was a total of 819-days, which repeated "sets of 9- and 13-day intervals associated with different groups of deities, animals and other significant concepts." A calendar associated with their own gods. And you people think they also predicted the end of the world? I don't think God would be too happy with you if he heard that.
Hell, here's how advanced they were. They never had anything comparable to a leap year. Why is this so significant? Because you're all relying so much on the Mayan mathematics for this date. Basically, "the Haab' (Maya version of the 365-day calendar) was crude and inaccurate, since it treated the year as having 365 days, and ignored the extra quarter day in the actual tropical year. This meant that the seasons moved with respect to the calendar year by a quarter day each year, so that the calendar months named after particular seasons no longer corresponded to these seasons after a few centuries."
Here's food for thought. Let's assume that they actually did make a prophecy about 2012 being the end. To this day, we are still not one hundred-percent sure how the Maya civilization was destroyed/destroyed itself. And that was in the past, which we can study. But you believe that people who had slaves, made human sacrifices, and probably destroyed themselves with corruption of power could see into the future almost a millenia, but not well enough to foresee their own downfall? Makes perfect sense.
2012 is bullshit. Please stop spewing it.
And boycott Roland Emmerich's next piece of shit movie. You're only encouraging other stupid people. This is the same man that brought you: Independence Day, The Day After Tomorrow, Godzilla (1998), Stargate, and 10,000 BC. His movies are rooted completely in facts, right? I do love how 2012 practically claims it's true though. Do what Emmerich says, Google it. Two minutes later you'll realize he's full of shit. It's just Hollywood banking off your retardation and mass hysteria.