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: The future Byzantine Emporer Romanus II was at one time betrothed to his niece Hedwig, and his son married Theophano, who was either the daughter of the same Romanus II or the niece of John Tzimices. The son of Henry I, Duke of Saxony, he defeated the Magyars at the Battle of Lech in 955 and was crowned Holy Roman Emperor in 962. For ten points, name this founder of the dynasty that bears his name.

A: History
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Q: One of this man's theories was supported by the discovery that Hittite contained forms in which distinct reflexes of the laryngeals are recorded, and he explained how the vowel alternations of a came about in his first work, Memoir on the Original System of Vowels in the Indo-European Languages. He is noted for his terms langue, or regularities and patterns in speech, and parole, or actual acts of speech. The work he is most famous for is often considered the foundation for structural linguistics, though Charles Bally and Albert Sechehaye actually published it. FTP name this Swiss linguist whose lecture notes and other materials were posthumously turned into the seminal Course in General Linguistics.

A: Social Science
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Q: This force is represented by a first derivative with respect to position in the harmonic oscillator equation. In one model, this force stems from tiny electrostatic repulsions. It can be understood as the parallel shear component of the contact force, whose other component is typically calculated as mg cosine theta. It is calculated from a coefficient, symbolized mu, multiplied by the normal force. Rolling motion is affected by the "kinetic" type of this force, which is known as "drag" in fluids. For 10 points, name this force that resists the motion of objects against one another.

A:
Science
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