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.

This god briefly regained life after his wife transformed into a kite to wave air into him. During the Middle Kingdom the god Ptah became assimilated with this god, and this god's son is typically depicted with the head of a falcon. Along with his brother the god of chaos this god was one of two sons of Geb and Nut and this god was also the father of Horus and husband of Isis. This god was killed by his brother Seth, who chopped up his body into many pieces. For 10 points, name this Egyptian god of the underworld.
Social Science