Instructions: 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.
Input: This ruler employed the generals Mazares and Harpagus, who were sent to attack Asia Minor, as well as Gubaru, who worked in Mesopotamia. According to one story, this ruler won a battle by placing camels at the front of his army, whose smell distracted his opponent's horses. That was the Battle of Thymbra. This man won the Battle of Opis by (*) diverting a river so that his men could cross it. Rulers defeated by this man included Croesus of Lydia and Nabonius of Chaldea. This man appears in the Hebrew Bible where he brings an end to the Babylonian Captivity and he was succeeded by his son Cambyses II. For ten points, name this founder of the Achaemenid dynasty, the first ruler of the Persian Empire.
Output:
History