Given the task definition and input, reply with output. In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

Son of the "Lord and Lady of Duality," this deity, one of the four "active" gods, is associated with the color white. He was pursued by a pack of quails along with his twin brother after the "Lord of the Sojourn of the Dead" was irked at his attempts to create a new race, and he had earlier helped his one-time (*) rival capture Cipactli, who bit off that rival's foot. The brother of the god of magicians, the psychopomp Xolotl, this god sprayed some bones with blood from his penis, creating humanity, whom he provided with a calendar and maize. A rival of Tezcatlipoca, FTP, identify this god, for whom Hernan Cortes was once mistaken, a feathered serpent deity supremely venerated by the Aztecs.
Social Science