In Mesoamerica, information was recorded on long strips of paper, agave fibers, or animal hides, which were then folded and protected by wooden covers. These were thought to have existed since the time of the Classical Period between the 3rd and 8th centuries, CE. Many of these codices were thought to contain astrological information, religious calendars, knowledge about the gods, genealogies of the rulers, cartographic information, and tribute collection.