Official ecclesiastical and government records
Much of this literature is unpublished. Its purpose was administrative rather than intellectual, but it has provided an extraordinarily rich source of information for all 16th-century ethnic groups. The documents vary from tax lists, censuses, and marriage and baptismal records to broad geographic-economic surveys. Among the most valuable of the last type are the Relaciones geográficas of 1579–85, a series of surveys ordered by Philip II of his overseas possessions. Formal questionnaires were drawn up that demanded information from each town in the empire on virtually all aspects of Meso-American life: questions on the natural environment and resources, crops, population history, settlement patterns, taxes paid, markets and trade, the language, native history and customs, and progress of the missionization program. William T. Sanders Jacques Soustelle