The original page 13 of the Codex Borbonicus, showing the 13th trecena of the Aztec sacred calendar. This 13th trecena was under the auspices of the goddess Tlazolteotl, who is shown on the upper left wearing a flayed skin, giving birth to Cinteotl. The 13 day-signs of this trecena, starting with 1 Earthquake, 2 Flint/Knife, 3 Rain, etc., are shown on the bottom row and the right column.
The Codex Borbonicus is one of a very few Aztec codices that survived the colonial Spanish inquisition. When the Spanish conquistadors (led by Hernán Cortés) entered Aztec cities, they would often find libraries filled with thousands of native works. However, most of the works were destroyed during the conquest as a means to hasten the conversion of the Aztec to European ideals.
Oh this is my jam. So in Nahuatl the beginning of the Trecena is Ce Ollin which is one movement/quake which ends in Mahtlactli Omei Atl thirteen water. Teteoh are assigned to Ihiyotl ( with a day bird to present) and Teyollia soul designations for management. These designations are assigned through the holy 260 day calendar year via patterns in the calendar. I love this stuff.
What is the significance of the birds/animals associated with each Trecena?
This ancient monopoly board is clearly indicated with pictorials the way Park Place is in purple, etc.