Aztec codices are Mesoamerican manuscripts made by the pre-Columbian Aztec, and their Nahuatl-speaking descendants during the colonial period in Mexico. Most of their content is pictorial in nature and they come from the multiple Indigenous groups from before and after Spanish contact. Differences in styles indicate regional and temporal differences. The types of information in manuscripts fall into several broad categories: calendar or time, history, genealogy, cartography, economics/tributes, census and cadastral, and property plans. Codex Mendoza and the Florentine Codex are among the important and popualr colonial-era codices. The Florentine Codex, for example is known for providing a Nahuatal narrative of the Spanish Conquest from the viewpoiont of the Indigenous people, instead of Europeans.