Once every 52 years, Aztec priests let the fire die out. The high priest, wearing a turquoise mask representing Xiuhtecuhtli, would then perform a Xiuhtlalpilli, or "new fire ceremony", which ...

It contained an assortment of sacrificial perforators made of jaguar bone, used by Aztec priests to spill their own blood as a gift to the gods. Alongside the perforators were bars of copal ...

The naming ceremony was a key ritual in Aztec society. It was the solemn duty of the father to inform the priests of the day and time of birth, and they in turn consulted the Tonalamatl ...