Understanding when, where, and how the Mesoamerican calendar developed is important because the 260-day system underlies many aspects of Maya cosmology, religion, and social life.

The calendar system’s longevity attests to the persistence of Maya intellectual culture, says Stuart, of the University of Texas at Austin.

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 Tzolk’in calendar pairs 13 numbers with 20 named days in a 260-day cycle, meaning that there are no weeks and months in the system. Some Maya groups still observe the calendar.

A profound mystery surrounding the ancient Mayan calendar might finally have been solved. Previous research, on historic inscriptions, has found that the ancient Mayans used a calendar system ...

“This calendar system has lasted for at least 2,200 years, maintained by the Maya during times of incredible change, stress and tragedy,” Stuart said.

A mural fragment found in a Mayan site in San Bartolo, Guatemala may be the earliest evidence of the 260-day calendar.

The Maya Civilization—an extraordinary culture that once ruled over vast territories in Mesoamerica—continues to captivate ...

Was the Mayan calendar ever changed or did they keep the same system through the milennia? Makes me wonder what the longest continuously used calendar system was. I think the Jewish calendar ...