- 3,949
- 1,197
- Joined
- Nov 16, 2001
http://www.latimes.com/news/science/la-sci-ancient-mayan-calendar-20120511,0,597949.story
The astronomical calculations are similar to those found in the well-known Dresden Codex, a bark-paper Maya book from the 11th or 12th century, and they may yield insights on how that well-known work was prepared.
Not all of the writing has been deciphered yet, but some clearly describe the 260-day ceremonial calendar, the 365-day solar calendar, the 584-day cycle of Venus and the 780-day cycle of Mars. Another calendar nearby comprises 17 baktuns, or 400-year periods, encompassing an additional 4,000 years beyond the 21st century.