|pic from link below|
Mayan art and calendar at Xultun stun archaeologists
"Archaeologists working at the Xultun ruins of the Mayan civilisation have reported striking finds, including the oldest-known Mayan astronomical tables.
The site, in Guatemala, includes the first known instance of Mayan art painted on the walls of a dwelling.
A report in Science says it dates from the early 9th Century, pre-dating other Mayan calendars by centuries.
Such calendars rose to prominence recently amid claims they predicted the end of the world in 2012."
Here's a link from National Geographic:
In my opinion, National Geographic is like a girly mag - good for the pictures - but not much reading worth taking seriously...but here are the pics...notice they already know "X" - like all of their stories.