Aztec and Maya Calendar
In the tonalpohualli, the sacred Aztec calendar, Friday December 7, 1520 is:
Xihuitl:
solar year
2 - Tecpatl (flint knife)
Long Count:
Mayan calendar
11.15.0.14.16
Xiuhpohualli:
365-day calendar
18 - Panquetzaliztli (XVI)
(Correlation: Alfonso Caso [adjust])
The significance of this day
Aztec facts
The Aztecs did not use a leap year correction but they knew the length of a solar year is neither 365 nor 365.25 days. Presumably they kept some count of days to register astronomical events but no evidence of an Aztec Long Count exists.
Day Cozcacuauhtli (Vulture) is governed by Itzpapalotl as its provider of tonalli (Shadow Soul) life energy. Cozcacuauhtli signifies long life, wisdom, good counsel and mental equilibrium. It is a good day to confront the discontinuities, disruptions, failures and deaths one suffers in life. Cozcacuauhtli is a day for tricking the Trickster.
The thirteen day period (trecena) that starts with day 1-Coatl (Snake) is ruled by Xiuhtecuhtli, Lord of the Year, the ancient god of fire who stands at the center. The 13 days of this trecena are governed by the forces that have created a power vacuum in the situation. The throne is empty and the rightful heir must struggle with all the pretenders who would claim it. These are 13 days of conflict, intrigues and unexpected developments. The throne will fall to the one who has laid the groundwork, built the alliances and is favored by the timing of events beyond any one person's control. This time will come again: those who are not prepared should bide their time; those who hold the throne should beware. These are good days to act out of strength, bad days to rely on the strength of others.