Around the principal central figure, representing the sun, are delineated in a circular form the twenty days of the month; which are marked from 1 to 20, with figures in the plates, and, in this order, are the following:
- 1 Cipactli.
- 2 Xochitl.
- 3 Quiahuitl.
- 4 Tecpatl.
- 5 Ollin.
- 6 Cozcaquauhitli.
- 7 Quauhtli.
- 8 Ocelotl.
- 9 Acatl.
- 10 Malinalli.
- 11 Ozomatli.
- 12 Itzeuinitli.
- 13 Atl.
- 14 Tochtli.
- 15 Mazatl.
- 16 Miquiztli.
- 17 Cohualt.
- 18 Cuetzpalni.
- 19 Calli.
- 20 Ehecatl.
The triangular figure I, above the circle enclosing the emblem of the sun, denotes the beginning of the year. Around the circumference which bounds the symbols of the days and months are found the places of fifty-two small squares, of which only forty are actually visible, the other twelve being covered by the four principal rays of the sun marked R. These doubtless denote the cycle of 52 years; and each of these squares contains five small oblongs, making in all 260 for the 52 squares. They are presumed to represent the 260 days or the period of the twenty first