2018 3 Oz Silver Cook Island 20$ AZTEC CALENDAR STONE PCGS MS70 FDOI Coin

2018 3 Oz Silver Cook Island 20$ AZTEC CALENDAR STONE PCGS MS70 FDOI CoinTheAztec or Mexica calendaris the calendar system that was used by the Aztecsas well as other Pre-Columbian peoples of centralMexico. It is one of theMesoamerican calendars, sharing the basic structure of calendars from throughout ancient Mesoamerica. The calendar consisted of a 365-day calendar cycle called xiuhphualli(year count) and a 260-day ritual cycle called tnalphualli(day count). These two cycles together formed a 52-year “century, ” sometimes called the “calendar round”. Thexiuhphualliis considered to be the agricultural calendar, since it is based on the sun, and thetnalphualliis considered to