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.

During the month dedicated to this deity, a priest led a procession around the city in impersonation of his lieutenant Paynal, while other priests burned giant bark versions of his weapon, the xiuh coatl. His sister ruled over snakes, scorpions, and the various insects of the desert, and he once sent a sign in the form of an eagle atop a cactus eating a snake to tell his followers to build a city. He foiled a plot to kill his mother, who had been impregnated by a ball of feathers, by leaping out of her womb and killing his sister Coyolxauhqui and 399 of his other siblings. For 10 points, name this patron deity of Tenochtitlan and Blue Hummingbird on the Left, the Aztec sun god.
Social Science