Sheikhdom of Kuwait (provincial sub-governors) of the Ottoman government. The independence of Kuwait was also highlighted by the statement made by Sheikh Mubarak Al-Sabah to the German team who requested an audience with him over the extension of the Berlin-Baghdad railway to Kuwait in which Mubarak said that he would not sell or rent any piece of his land to a foreigner, and that he did not acknowledge the authority of the Ottomans over Kuwait. The convention ruled that Shaikh Mubarak had independent authority over an area extending out to a radius of 80 km, from the capital. This region was marked by
Culture of the Ottoman Empire under the Ottomans, its traditions having been shaped by the work of Abbasid calligrapher Yaqut al-Musta'simi of Baghdad, whose influence had spread across the Islamic world, al-Musta'simi himself possibly being of Anatolian origin. The Diwani script is a cursive and distinctively Ottoman style of Arabic calligraphy developed in the 16th and early 17th centuries. It was invented by Housam Roumi, reaching its greatest development under Süleyman I the Magnificent (1520–66). The highly decorative script was distinguished by its complexity of line and by the close juxtaposition of the letters within words. Other forms included the flowing, rounded Nashki script, invented