Similarly to the Incan god Viracocha, the Aztec god Quetzalcoatl and several other deities from Central and South American pantheons, like the Muisca god Bochica are described in legends as being bearded. The beard, once believed to be a mark of a prehistoric European influence and quickly fueled and embellished by spirits of the colonial era, had its single significance in the continentally insular culture of Mesoamerica. The "Anales de Cuauhtitlan" is a very important early source which is particularly valuable for having been originally written in Nahuatl. The "Anales de Cuauhtitlan" describes the attire of Quetzalcoatl at Tula: