Answer:
It explained what they believed to be the history of the world.
The carvings on the stone depict various mythological and historical events that were believed to represent the Aztec view of the world's history. The stone calendar served as a visual and symbolic representation of their cosmology and understanding of time, providing a narrative of their beliefs about the origins and progression of the world. It was an important tool for preserving and conveying their cultural and historical knowledge.
Crown?!