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.

The earliest discovered writings on these were in the Hittite language and were authored by Kikkuli of Mitanni, while Gryson, an expert on these, helped Xenophon to write two treatises on the subject. Tupac Amaru II and Francois Ravaillac were both executed using four of these, and one of these named Incitatus was legendarily appointed as a Roman senator by Caligula. The Avars brought an invention that eased their use to Europe, and huge masses of these were instrumental in saving the French army at Eylau. Many cities were named after of these owned by Alexander the Great, Bucephalus. For 10 points, name these animals used to transport hussars and knights.
Literature

An RNA polymerase from one of these organisms is commonly used in in vitro transcription experiments, and one well-studied example of these organisms uses the Q antiterminator to transcribe its structural components. Benzer's rII system uses these organisms for single-nucleotide mutation mapping, and the Phi-X-174 example of these organisms was the first to have its genome (*) sequenced. These organisms carry genetic information between cells in transduction. These organisms were labeled with 32P and 35S in the experiment that showed that DNA is the substance that stores genetic information, performed by Hersey and Chase. These organisms use their tail proteins as an injection mechanism. For 10 points, name these viruses that infect bacteria.
Science

major geological feature in this state is the Dripping Springs Escarpment, which forms the boundary of the Pennyroyal Plateau along with Muldraugh Hill. This state also contains a notable region of "knobs" formed by the Big Clifty Sandstone. The defining feature of its most famous region arises from the unique soil of the Eden Shale Hills. The Sheltowee Trace passes through its Red River gorge while the Jackson Purchase area of its East includes a cross-river exclave. This state contains two geologically distinct coal basins. Also containing (*) Daniel Boone National Forest is, for 10 points, which state containing the cities of Louisville and Lexington, a state known for its bluegrass

Social Science

