The rise in the third century of a new Iranian state, the Sassanid Empire, continued the old rivalry between Rome and the Parthians along the Euphrates frontier. After they had overruled the Parthians for power in Iran and in certain parts of central Asia. However, behind this facade of continuity, a social and economic transformation took place that set the stage for a new and powerful religious and political movement which was known As Islam. Yet, before this the Sassanid Empire started their establishment of the religion Zoroastrianism in which everything was basically based off of religious practices. Almost all of the shahs identified themselves first and foremost as members of a religious community. The schools and law courts were religious, the people looked up to religious leaders as moral guides in daily life, and most books discussed religious subjects. So practically everyone's life within the Sassanid Empire was based on the practice of religion and faith for Zoroastrianism. The Sassanid Empire was similar to Byzantine Empire because both empire were based on strict religious practices in which they did not allow people to within their respective empires to practice or follow other religions. As they had a strong belief in their own religion yet with a no tolerance policy of other religions in which they have been known to persecuted …show more content…
Islam emerged from nomads who were traveling the pastoral lands of the Arabian Peninsula. However Islam mainly spread because of Muhammad's revelations that had spoken of God or Allah in Islam and with those recognize this were known as a Muslims meaning one who makes submission to the will of god in Islam. Islamic communities like umma became known as, a single community defined by acceptance of Islam and of Muhammad as god's