Aztec and Maya Calendar
In the tonalpohualli, the sacred Aztec calendar, Monday December 18, 1531 is:
Xihuitl:
solar year
13 - Acatl (reed)
Long Count:
Mayan calendar
11.15.12.0.4
Xiuhpohualli:
365-day calendar
11 - Atemoztli (XVII)
(Correlation: Alfonso Caso [adjust])
The significance of this day
Aztec facts
Tenochtitlan, the Aztec capital was captured by Hernán Cortés on August 13, 1521 (day 1-Coatl). This date, as recorded by Fray Bernardino de Sahagún, provides an anchor for the correlation of the calendar.
Day Cuetzpalin (Lizard) is governed by Huehuecoyotl, the Trickster, as its provider of tonalli (Shadow Soul) life energy. Cuetzpallin signifies rapid reversals of fortune. It is a good day to work on your reputation through actions, not words.
The thirteen day period (trecena) that starts with day 1-Cuauhtli (Eagle) is ruled by Xochiquetzal. This trecena signifies a time of inspired play: regardless of the sport, this is the time of mastery. All of one's practice and preparation culminates now in an unparalleled conjunction of luck, skill and timing. These are 13 days when gambling on happiness, both your own and others', pays off. These are good days for taking risks; bad days for playing it safe.