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.

Q: According to one story, this figure founded a city when his efforts in digging up a mushroom revealed a spring. That city was ruled by Electryon and Sthenelus, members of a namesake dynasty he founded. When this ruler was unable to assume the throne of Argos, he traded realms with Megapenthes. This man was sent on a quest by a king of Seriphus named (*) Polydectes during which he stole the tooth and eye of the Graeae. He rescued the daughter of Cassiopea and Cepheus from a sea monster before taking that girl, Andromeda, as his wife. His mother Danae was locked in a tower by King Acrisius to avoid a prophecy, but he was conceived by Zeus in the form a stream of gold. For 10 points, name this hero who used winged sandals and the helmet of invisibility to slay Medusa.

A: Social Science
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Q: Halogen addition to them creates a mixture of a 1-2 and 1-4 addition product. One preparation of them involves butane undergoing thermal dehydration. Another synthesis of the conjugated variety of this chemical group involves elimination of unsaturated alcohols and alkyl halides. They include a number of useful reagents, including ones named for Chan, Dane, Brassard, Rawal, and Danishefsky. In addition to the conjugated variety, they also occur in isolated and cumulated varieties. Conjugation energy guarantees that the conjugated form is the most stable. For ten points, what is this organic functional group whose 1,3 variety are a principal reactant in the Diels-Alder reaction, and which is characterized by a pair of double bonds.

A: Science
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Q: One of Nesper's criteria states that if a Zintl phase has this property, then that property must be temperature-dependent. Gorter developed an empirical equation describing absorption due to this property, and Al'tshuler developed a theory of (*) relaxation in lanthanides due to this property. Two theories of this property are named after Brilouin and Langevin. The van Vleck form of this property is temperature-independent, and its weakest form was explained in terms of Fermi-Dirac statistics by Pauli. Certain types of oximetry take advantage of the fact that oxygen has this property, which occurs above the Curie temperature. For 10 points, name this type of magnetism found in substances with unpaired electrons.

A:
Science
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