Documents from Oaxaca, Mexico, in archives and museums in Mexico, the United States, and former European colonial powers are stimulating archaeological projects and other research in the areas where they originated. The Teozacoalco Archaeological Project was inspired by colonial-period documents housed in the Nettie Lee Benson Latin American Library at the University of Texas at Austin. Chiyo Cahnu, a Mixtec kingdom better known as Teozacoalco, was the scene of Aztec and Spanish colonial incursions. The archiving in Texas of the famous Mapa de Teozacoalco and associated documents pertaining to the kingdom/municipality, as well as other documents related to Teozacoalco, neighboring Mixtec kingdoms, and other indigenous Oaxacan communities housed in libraries, archives, and museums distant from those communities, invites us to consider some important issues: how and why they left their original homes and arrived in their present locations and legal and ethical ramifications of housing them outside of their homeland. Included in the latter topic are questions about decolonizing documents, whether documents should be repatriated, and best practices for archaeologists whose projects are inspired by them.