which may be the biggest and oldest known Maya monumental complex. The group analyzed the sites’ astronomical orientations on notable days of the 260-day calendar, including solstices and lunar ...

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 ...

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 ...

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An inch-wide image of a deer’s head discovered at the base of a pyramid in the ancient city of San Bartolo is the earliest known notation from the 260-day Maya ritual calendar, which is still in ...

The Chol Q’ij or Tzolk’in Maya calendar ceremony is held in the highlands of Guatemala every 260 days. Pictured above are calendar keepers preparing the altar for the ceremonial fire. Credit: Isabel ...

The glyph found on the mural fragments for “7 Deer,” one of the calendar’s 260 named days, consisted of the ancient Maya writing for the number seven over the outline of a deer’s head.

Olmec and Maya people living along Mexico’s Gulf Coast as early as 3,100 years ago built star-aligned ceremonial centers to track important days of a 260-day calendar, a new study finds.

The Maya calendar is far less simple than many realize. Like many Mesoamerican cultures, the Maya used a 260-day calendar known for the Maya as the Tzolkin. This calendar played extremely ...