Name the two calenders that the Aztecs would use?

The Aztecs used two main calendars: the Tonalpohualli and the Xiuhpohualli. The Tonalpohualli is a 260-day ritual calendar composed of 20 periods of 13 days, used for religious and divinatory purposes. The Xiuhpohualli is a 365-day solar calendar divided into 18 months of 20 days each, with an additional short month of 5 days, primarily used for agricultural and civil purposes. Together, these calendars helped the Aztecs organize their religious ceremonies, agricultural activities, and societal events.