The Library of Congress provides online access to the Florentine Codex, a 1577 manuscript written by indigenous informants under the supervision of Fray Bernardino de Sahagún (1499-1590). The manuscript is held in the Medicea Laurenziana Library in Florence. The Florentine Codex also known as Historia General de las Cosas de Nueva España is one of the most important sources for the history of pre- and post-contact Mexico. It is an etnographic and historic document about the people and culture of Mesoamerica, especially the
Aztecs.The text is in Spanish and Nahuatl, the language of the Aztecs. It includes illustrations made by indigenous artists. The codex is organized into twelve books, each covering a different aspect such as religion, calendar, economic and social life, Aztec history and mythology, the use of plants and animals, and in-depth narration of the Spanish conquest.
The Florentine Codex can be accessed: General History of the Things of New Spain by Fray Bernardino de Sahagún: The Florentine Codex
Primeros Memoriales are the preliminary texts that Sahagún and his indigenous informants prepared. The first part was written between 1559-61; the second, between 1561-62.