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]: In one story, this god disguises himself as the farmhand Bolverk in a successful attempt to retrieve the Mead of Poetry. This god sits atop the ""high place"" of Hlidskjalf, and that which he cannot see is recalled to him by his two ever-circling ravens, Hugin and Munin. This god, who hung from the world tree on the spear Gungnir to earn mastery of the runes, will be swallowed whole by the wolf Fenrir at Ragnarok. For 10 points, name this one-eyed chief god of the Norse pantheon.
[A]: Social Science

[Q]: This man was the subject of a 1949 Henry Cowell opera designed as a satire against Dwight Eisenhower. He died in exile after a conservative coup led by his successor, Ramn Freire. When his father became viceroy of Peru, he was sent to London, where he met Francisco de Miranda and joined the independentist Lautaro Lodge. He began his public life as a deputy to the Cabildo from La Laja. His cavalry charge at the battle of Chacabuco allowed him to enter Santiago in triumph along with Jose de San Martin in March 1818. FTP, name this descendant of Irish officers in Spanish service, the first ruler of an independent Chile.
[A]: History

[Q]: A protein associated with this molecule is compartmentalized by AKAP. This molecule names the regulatory sequence TGACGTCA. In olfactory sensory neurons, this molecule causes a depolarizing flux of sodium and calcium ions by activating CNG channels. Most of the effects of this molecule are mediated by a certain kinase to whose two regulatory units it binds, releasing its two catalytic subunits; that kinase is protein kinase A. In the liver and muscle, its formation stimulated by epinephrine, which enhances glycogenolysis. Like a related molecule that contains guanosine, it is cleaved by phosphodiesterases. It was discovered by Earl Sutherland. For 10 points, name this secondary messenger that is synthesized from ATP by adenylyl cyclase.
[A]:
Science