What it is: A turquoise-encrusted wooden mask from the Aztec civilization Where it is from: Somewhere in Mesoamerica When it was made: Between 1400 and 1521 Related: Book of Kells: A 1,200-year ...

Aztec society, whose powerful empire stretched over what is now southern ... Much of what is known of Aztec society comes from a book written by Bernardino de Sahagún, a Spanish friar living ...