(CNN) — Archaeologists working in an ancient Mayan city have unearthed a mysterious 1,700-year-old altar whose bright decorations and grim contents may hold the key to unraveling the complex ...

“Yet, we do not see anyone having consideration for nature because there is a disconnect between humanity and the land we occupy.” Montejo used the Mayan calendar as an example of unification between ...

Spreadsheets are free, flexible, and easy to customize. Semrush’s content calendar template is a good example of how you can create a useful content calendar in a collaborative spreadsheet.

Also known as the Sacred Calendar, Tzolkin, Lunar Calendar, or the Count of Days. It has 260 days, divided into 13 periods of 20 energies each, which repeat cyclically. It contains the knowledge and ...