Original sentence: Its rulers converted to Judaism in the 1st Century
Edited sentence: It was formed of Kurds who mostly lived in rural areas.Its rulers who were a nobility of Iranians called Magians  converted to Judaism in the 1st Century.The Magians , Persians and Parthians  who alsmot all of them belong to noble class and inhabited cities and towns.There lived also Aramaic-speaking Christians (Suryaye, better known as Assyrians) who were mostly involved in agriculture.There lived also a significant Jewish population.They were largely persecuted alongside the people whom they converted from Zoroastrianism to Christianity by both Adiabene (at the begining) and Sassanid rulers