Given the task definition and input, reply with output. 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.

Obscure rulers of this polity include Sinatruk, who came to power at the age of 80 during an invasion from the north. It was known as "Anxi" to the Chinese and was founded by a member of the Parni tribe. The Kingdoms of Characene and Elymais were part of this larger polity, whose notable generals included Surena. It began as a revolt against Andragoras, a Seleucid governor. During the reign of Orodes II this empire ruled by the Arsacid Dynasty won the Battle of Carrhae against the Roman triumvir Crassus, but it would be destroyed by Ardashir I who founded its successor state after capturing Ctesephon. For ten points, name this empire in Persia that preceded the Sassanids.

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
History