What was an unlucky day for Aztecs?

An unlucky day for the Aztecs was the day of Toxcatl, which marked the festival dedicated to the god Tezcatlipoca. This day involved a series of rituals, including the sacrifice of a young man who was treated as a god for a year before his death. The significance of Toxcatl was tied to themes of renewal and sacrifice, but it was also seen as a day of misfortune because of the inherent violence and loss associated with the rituals. Such events reflected the complex interplay of fate and divine favor in Aztec culture.