http://www.bbc.co.uk/news/science-environment-18018343
Some archaeologists working at the Xultun ruins of the Mayan civilisation have
reported stuning finds, like the oldest known Mayan astronomical tables. They discovered an strange building that wasn't made on Mayan's way. Usually, when Mayan renovated a building they broke the roof and build on the brash. but this strange edification was diferent. When they renovated it they built directly on the roof.
Then some archaeologists found the oldest Mayan astronmical calendar, there they found that this 2012 it wasn't suposed to happen anything, but into 7.000 years yes. This is due to the system Mayan's use to calculate, they used base-18 and base-20
I think, this is and important discover, most people belive that 2012 was the year of the change of Earth. But, Mayans calculated that in 7.000 years the sun will create an energy beam and will change how the Earth works. So, I'd like to know if in 7.000 people will become crazy like someones are becoming these days, you will understand this if you have whatched 30-minuts the other day.