Characteristic of this system is the cyclical nature, with the Mayan calendar featuring three common cycles: the Long Count, Tzolk’in (260-day) and the 365-day, solar-based Haab’. Combined ...

Researchers have long believed this calendar was associated with ... one planet,” the authors write, “the Maya astronomers who created the 819-day count envisioned it as a larger calendar ...

The ancient Maya, a civilization that thrived in Mexico and Central America centuries ago, kept accurate calendars; one of them marks the end of a 5,126-year cycle, or the Long Count, on December 21, ...

This event happened 99 days before the "period-ending" Maya Long Count date of 9.14.0.0.0. Just as we do, the Maya felt "round number" jubilees and ends of decades were important. Here the royal ...