The Aztec calendar stone was carved in 1479. The stone is characterized by the carving of the Aztec sun god in the center and has 20 symbols, each representing another Aztec god, along with 13 numbers representing the days of week.
The sacred Aztec calendar begins with God Tonacatecuhtli, crocodile-shaped, finishes with Mictlantecuhtli is represented as a dog.
The second half of the sacred calendar provides Xochipili monkey god, as the first and finishes with Xochiquetzal that looks like a flower.
ROTATING DAYS:
The Tonalpohuali crocodile starts at 1. For the second day, both the number and the symbol wind changed to 2, followed by the 3rd house, and so on until 13 cane, which is the time when the Aztec week ends. The fourteenth day in the calendar is 1 jaguar, eagle followed by 2. A total of 260 combinations of this type.
52 CYCLES:
The two calendars running simultaneously, and the same day at the same time Tonalphohuali falling on the solar calendar once every 52 years, so the Aztecs measured these periods of 52 years as we measure the centuries today