Why Does The Mayan Calendar End In 2025 And Not 2025. It’s clear that by the end of the eighth century or so, the maya had degraded the natural environment substantially by removing forest for construction and agriculture. Mayan calendar, dating system of the ancient mayan civilization and the basis for all other calendars used by mesoamerican civilizations.

When the spanish first arrived in central america they burned thousands of mayan books (only 4 survived), so their reason for such an ancient start date for their calendar is. The beginning of the current era (august 11, 3114 b.c.) may be linked to a solar zenith passage in the southern maya area, whereas the end of the era (december 21, a.d.