Number 13 and the Aztecs
number 13 TlazolteotlThe Aztecs considered thirteen to be a very sacred number. It was the number of time and stood for completion. An Aztec week lasted for thirteen days.
The Aztec year was 260 days. It was divided into 20 thirteen day periods. The 13 day period is called a Trecena.
In Aztec mythology, the goddess Tlazolteotl ruled the 13th Trecena.
She was the goddess of sin and a patroness of adulterers.
She could also forgive sins, especially those of a sexual nature. Tlazolteotl is associated with purifying steam baths