Mayan Calendar 2025 Doomsday Holidays. Concordia professor lorenzo ditommaso specializes in apocalypse lore, and he says the mayan calendar marked the. The haab, which measures cycles of 365 days;

What we call the mayan calendar is actually a set of three interlocking calendars, the sacred calendar of 260 days called the tzolkin, the solar calendar of 365 days known as. A newly discovered mayan text reveals the end date for the mayan calendar, becoming only the second known document to do so.