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.

He prompted the creation of the world when he put his foot in the water in order to lure the great caiman Tlatechutli, who bit off his foot and took her jaw. Associated with the flint knife, or tecpatl, he also created the first dogs by cutting off the heads of Tata and Nene and attaching them to the buttocks. The ruler of Mictlan, this dark god's name means "smoking mirror" in reference to the feature in his chest. FTP, identify this Aztec god of evil and enemy of Quetzalcoatl.
Social Science