Anglo-Ottoman Convention of 1913 have to accept Ottoman suzerainty, and in return, the northern islands of Warba and Bubiyan must be allocated to Kuwait, and so forth. The waning influence of Istanbul in the Gulf forced it to make concessions without much to gain in return. The Ottoman Empire had faced a number of setbacks in the last few decades—a few of its provinces achieved independence, some were annexed by other countries, or many lost in conflict—and for internal political reasons it may have seemed important to maintain Kuwait as part of the empire, even if only symbolically. The Ottomans also felt that making
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