Iranian dynasty since the Buyyids. The Safavids, who were of mixed Kurdish, Turkic, Georgian, Circassian and Pontic Greek ancestry, moved to the Ardabil region in the 11th century. They re-asserted the Persian identity over many parts of West Asia and Central Asia, establishing an independent Persian state, and patronizing Persian culture They made Iran the spiritual bastion of Shi’ism against the onslaughts of orthodox Sunni Islam, and a repository of Persian cultural traditions and self-awareness of Persian identity. The founder of the dynasty, Shah Isma'il, adopted the title of Persian Emperor Pādišah-ī Īrān, with its implicit notion of an Iranian state stretching from Afghanistan as far as the Euphrates and the North Caucasus, and from the Oxus to the southern territories of the Persian Gulf. Shah Isma'il's successors went further and adopted the title of Shāhanshāh (king of kings). The Safavid kings considered themselves, like their predecessors the Sassanid Emperors, the khudāygān (the shadow of God on earth). They revived Sassanid architecture, build grand mosques and elegant charbagh gardens, collected books (one Safavid ruler had a library of 3,000 volumes), and patronized "Men of the Pen" The Safavids introduced Shiism into Persia to distinguish Persian society from the Ottomans, their Sunni archrivals to the west. Ottomans At the beginning of the 14th century, the Ottomans rose to predominance in Asia Minor. The Ottomans patronized Persian literature for five and a half centuries and attracted great numbers of writers and artists, especially in the 16th century. One of the most renowned Persian poets in the Ottoman court was Fethullah Arifi Çelebi, also a painter and historian, and the author of the Süleymanname (or Suleyman-nama), a biography of Süleyman the Magnificent. At the end of the 17th century, they gave up Persian as the court and administrative language, using Turkish instead; a decision that shocked the highly Persianized Mughals in India. The Ottoman Sultan Suleyman wrote an entire divan in Persian language. According to Hodgson: Toynbee's assessment of the role of the Persian language is worth quoting in more detail, from A Study of History: E. J. W. Gibb is the author of the standard A Literary History of Ottoman Poetry in six volumes, whose name has lived on in an important series of publications of Arabic, Persian, and Turkish texts, the Gibb Memorial Series. Gibb classifies Ottoman poetry between the "Old School", from the 14th century to about the middle of