was known by the title Tlahuizcalpantecuhtli , meaning "lord of the star of the dawn." He was known as the inventor of books and the calendar , the giver of maize (corn) to mankind. http://en.wikipedia.org/wiki/Quetzalcoatl                                      Quetzalcoatl as depicted in the Codex Borbonicus .   Feathered Serpent head at the Ciudadela