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.
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Question: Having fought in the Chaco War, this man served as commander-in-chief of his nation's armed forces from 1951-54, and in 1954 he ousted President Frederico Chavez. Nicknamed Colonel Trunk, he essentially ruled as a totalitarian, and membership in his Colorado Party was a requirement for most jobs. His country became notorious for its illegal trade, drug trafficing, and harboring of NAZI war criminals, and in 1989 he was ousted by so-called "traditionalists" led by Andres Rodriguez. FTP, who was this son of a German immigrant, the long-time president of Paraguay

Answer: History

Question: In his later work he distinguished between value that is invoked when an interpersonal exchange occurs and value as denoting the qualitative mental evaluation of elements. Using these definitions, he created an algebra of social exchange in his Sociological Studies. In his earlier work he argued that information processing is guided by a need for equilibrium, which is restored by either assimilating new information into old patterns, or altering the old pattern to accommodate the new information. Known for his belief in instinctual "schemas" of behavior at birth, he sought to understand the formation of knowledge in terms of "genetic epistemology. " FTP, name this French developmental psychologist, best known for positing four stages of development beginning with the sensorimotor.

Answer: Social Science

Question: One form of it uses a reaction between iodine and sulfur dioxide to measure the presence of water, and is named for Fischer. A conductometric version of performing it requires the temperature to be constant, while the redox variety of it uses a potentiometer. This process is generally represented by a sigmoid curves, whose midpoint usually gives the equivalence point. For 10 points, identify this method used to find the concentration of an unknown sample, notably used with acids and bases.

Answer:
Science