Has everything in the Mayan calendar happened?

The Mayans predicted that the world would end on 2012, according to the scientist or others. The Mayans wrote in hieroglyphics on their calendar, they also drew a picture of an astronaut on the moon. And now hundreds of years later... our astronauts are on the moon. So, if they got their prediction right, does this mean that they will also be right about the world ending on 2012? Some believe and some don't. Some say that they ran out of room on their calendar, others say that they are fooling us, trying to scare us.