Christianity has a long previous record of history in Iran. From the first Christians up to arriving Islam and the new Iranian Christians. It has always been a minority religion relative to the majority state religions. though they had more representation in past. Iran Christians have played the main role in the history of Christian mission. The beginning of Christianity in Iran is from the Parthian Period and the Early Middle Ages. The Christians of Iran are among the Eastern Christians. These are the same groups of Christians who stationed in the eastern territories of Jerusalem
After the Mongol rule in Iran and persecutions of Christians, it transferred to Iraq and the city of Mosul
The first Christians in Iran
Christians entered Iran in two ways
1- Western route: Through Iraq and the Mesopotamian lands, which belonged to Iran before Islam and had been the border of the Euphrates River.
2- Northwestern route: Northwestern of Iran and current Armenia country(This country had been part of the Iran territory for various periods).
The valid historical documents prove that Christianity formed in Iran after coming to the Sassanian Empire. One of the most important reasons for the emigration of
Christians to Iran was unprejudiced of the Sassanid dynasty. So people were very free in choosing religion and doing their religious ceremonies. During this period, a large number of Armenians migrated to Iran.
The level of their living in the Seljuk period improved and they had a better situation. It also continued in the Mongol period. The number of Christians in Iran in the 13th and 14th centuries AD. The number of Christians in Iran in the 13th and 14th centuries AD was so high that Tabriz was the capital of the Iranian Christians.
But the greatest migration of Christians occurred during the Safavid period and Shah Abbas Kabir. After occupying Armenia, he forced many Armenians to emigrate to Iran. Some of the historical documents have mentioned between 300,000 and 500,000. Shah Abbas allowed them to stay around Zayanderood river. This area is currently the largest Armenian neighborhood in Isfahan. The largest and most famous Isfahan churches are also located here. Shah Abbas considered very different good social advantages for the Armenians.
In other historical periods of Iran, such as Afsariyeh and Zandieh, as well as Qajar, they have had ups and downs in their life. Iranian Christians call themselves Iranians and are proud of it. One of the most important and authentic documents of the Iranian Christians are the Armenian martyrs during the 8 years of the war between Iran and Iraq.