Investigating the influence of Shiism on the culture and civilization of Great Khorasan with the role of Imam Reza (peace be upon him).

The most important feature of the Imamate of Imam Reza (a.s.)was his presence in the culture-civilization of the great Khorasan land. The development of the Islamic caliphate during the Ma'mun period up to Khorasan and along the Jihun river was a source of joy because it was a manifestation of the spread of Islam, but it was a concern because of the confrontation with culture and civilization. There were different religions that challenged the civilizational-scientific aspect of Islam. Ma'mun, who had benefited from knowledge himself, at the time of this challenge and after his and his friends' desperation, with his advice, turned to the scholar of the family of Muhammad, Imam Reza so he insisted on his coming to the court of caliphate. Imam (a.s.) also used this good opportunity and had interesting and useful discussions with different groups during his short stay in Khorasan. - The Khorasan civilization was able to smooth and accelerate the growth and prosperity of the achievements of this civilization with the Islamic colorAs a result of the feedback and scientific blessings of the blessed presence of the Holy Prophet in the land of Khorasan, it is possible to compile and edit the most important hadith-scientific sources of Islam, Revival of the Sunnah of the Messenger of God and He considered the imams to purify, explain and stabilize Islamic teachings, elitism, enlighten and increase insight, and finally the prosperity of Shia and familiarization of all Islamic sects with their Imamate