Newfound calendar goes on and on and on.

GUATEMALA CITY, Guatemala (PNN) - May 11, 2012 - The ancient Mayans were masters of time, keepers of good calendars.

Now we have one of their timekeepers’ workrooms to prove it.

In a striking find, archaeologists in Guatemala report the discovery of a small building whose walls display not only a stunningly preserved mural of a brightly adorned Mayan king, but also calendars that destroy any notion that the Mayans predicted the end of the world in 2012.

These deep-time calendars can be used to count thousands of years into the past and future, countering ideas that Mayan calendars ended on Dec. 21, 2012, (or Dec. 23, depending on who’s counting), thereby predicting the end of the world.

In 2010, an undergraduate student working with Saturno, Max Chamberlain, stumbled onto the house as the team began to excavate at a Mayan city, Xultun, which despite being known since 1915, had never been professionally excavated.

A quick excavation revealed the back wall of the building - replete with a mural of a resplendent Mayan king in bright blue, adorned with feathers and jewelry and the preserved calendar.