Task: Text Categorization
Input (English): 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.
Output (English): History