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.

A hypothetical method of decay for these particles involves breaking into a positron and a neutral pion and would have a half-life on the order of 10 to the 35 years. In astronomy, these particles are employed in a namesake chain located in the cores of stars in order to synthesis lighter elements. Particles of this type are typically composed of two up quarks and a single down quark and these particles make up about 90% of all cosmic rays. Discovered by Ernest Rutherford, for 10 points, identify this subatomic particles that contributes the positive charge of an atoms nucleus.
Science

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.
Social Science

Philip Kearny became the first American to receive the Legion of Honor due to his participation in this battle, where he served with the Imperial Guards. On one side, an army corps under Lajos Benedek became separated from the main body, but successfully held their ground at Pozzolengo. That main body, which suffered the opposite fate, had previously been under the command of Count Gyulai, but he had been replaced by his empires head of state, much as the French forces were led by Napoleon III. Resulting in the Peace of Villafranca and the transfer of Lombardy to Sardinia, this is, for ten points, what battle between Austria and a nascent Italy, where the carnage was so great it inspired the foundation of the Red Cross.

History

