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.

One ruler of this nation helped Ordelafo Faliero and Baldwin I at the Siege of Sidon and was known as the Crusader. This country's communist-friendly DNA Party was able to pass much legislation after allying with its Agrarian Party in 1935. Duke Skule lost a battle in its modern capital in 1240, a capital also attacked by Erik of Sodermanland in 1350. During World War II, its resistance movement helped sabotage its heavy water facilities, while in the 19th century, the Storting Parliament held great influence in this country. A governor and later king of this country helped draft the Constitution of May 17, 1814 in the city of Eidsvoll after control of this country switched hands following the Treaty of Kiel. Oldenburg dynasty saw the rule of several monarchs named Frederick and Christian and it was ruled during World War II by Vidkun Quisling. For 10 points, name this country whose capital at Kristiania was renamed Oslo.
History

One protein that binds to this protein also binds to proline-rich sequences in the membrane proteins Vasp and Mena, and another is knocked out in the singed mutant. Phosphatidyl-inositol-4,5-bisphosphate regulates the binding of vinculin to both talin and this other protein, whose function is performed by nematode Major Sperm Protein in the only (*) eukaryotic cells known to lack one form of it. In addition to the aforementioned profilin and facsin, severin and gelsolin bind to this protein and sever it. Two toxins often used to study it are cytochalasins and phalloidin. Thymosin 4 sequesters this protein, which undergoes treadmilling because the critical concentration at its (+) and (-) ends is not the same. This protein consists of G monomers which polymerize into F filaments, which make up the microfilaments of the cytoskeleton. For 10 points, name this protein that forms cross-bridges with myosin in muscle cells.
Science

This mans father died at the Battle of Coronea after distinguishing himself in the Battle of Artemisium. When he was wounded at Potidaea, his chum Socrates came to his aid. Later, while this man was assisting Thrasybulus at Phocaea, Antiochus disobeyed his command to not attack, leading to the destruction of his fleet at Notium by Lysander and this mans subsequent self-imposed exile to Thrace. He advocated prolonging the Peloponnesian War to Tissaphernes, a Persian satrap, and he argued against Nicias in favor of a war against Selinus in support of the Segestans. However, he was recalled from the Sicilian Expedition to stand trial, but he escaped with his crew during the return voyage to Athens and instead joined the Spartan cause. FTP, name this Athenian general who switched allegiances a lot.
History