The article is devoted to the analysis of the process of the Persian language and culture de-velopment in the Middle Ages and the modern period, its continuity from the Sassanid era to the Samanid and Safavid eras and the synthesis of Arab-Muslim culture in Persia and India. The author turns to the origins of the New Persian language, examines the influence of Iranian culture on the cultural development of neighboring people and demonstrates that the Farsi language influenced the emergence in the Delhi Sultanate of a new Urdu language with a predominance of Persian-Arabic vocabulary. The synthesis of the Arab-Muslim culture of Iran, the mutual influence of the Arab-Islamic and local cultures, clearly manifested in the development of architecture, are considered. Chronologically, the article covers the period of the Middle Ages and the modern period. The re-search is based on the methodological principles of historicism and objectivity, as well as on the his-torical-comparative, historical-genetic, historical-typological methods and civilizational approach. The author concludes that the Iranian cultural influence in the Middle Ages and in the modern peri-od extended to all the eastern lands of Islam – from the Seljuk state to India. The Muslim society was multifaceted, yet subject to the strict rules of Islam. Classical Muslim thought and culture were characterized by a high adaptive capacity. At the end of the twentieth century, the Iranians declared the Persian language an important factor of cultural integration and the foundation of the national mentality. The Farsi language was proclaimed “the second language of Islam”, and the knowledge and study of classical poetry and philosophy of Sufism was recognized as an important means of consolidating the Muslims of the region. This cultural policy contributed to overcoming the interna-tional isolation of the Islamic Republic of Iran and expanding the scope of regional cooperation.
Synthesis of Arab-Muslim Culture in Persia and Northern India: Historical Background