Scholars show how multiple planet movements tie into the 819-day Mayan calendar. The 819 days of the ... From there, though, we need to start extrapolating out the 819 number, and if you chart ...

"The Mayan calendar," said Dr. Spinden, "passed out of use in 1561 when the Mayan books were destroyed in the Spanish Inquisition. At that time it had functioned for more than 2000 years without ...