Scholars show how multiple planet movements tie into the 819-day Mayan calendar. The 819 days of the calendar must be viewed across a 45-year time period to fully understand. The movements of all ...

Despite the mysticism that often clouds the Mayan calendar in popular culture, fact remains that the calendar system in use by the Mayans was based on a system used throughout the pre-Columbian ...

"The Mayan calendar," said Dr. Spinden ... difficulty arose from the fact that the Mayans never dropped leap year days; consequently, their natural year did not always begin on the same calendar ...