Aztec priests at Tenochtitlán offered a whole galaxy of starfish to the war god Huitzilopochtli 700 years ago, along with a trove of other objects from the distant edges of the Aztec Empire.

The Aztec civilization, flourishing in central Mexico from the 14th to the 16th centuries, was rich in mythology and religious traditions. Their pantheon of gods and goddesses governed every aspect of ...