The Ottoman Empire primarily controlled a vast region that included modern-day Turkey, parts of Southeast Europe, Western Asia, and North Africa for centuries. At its height in the 16th and 17th centuries, the empire was a significant power that bridged Europe and Asia, influencing trade, culture, and politics. Istanbul, formerly Constantinople, served as its capital and a key cultural hub. The empire's administration allowed for a diverse range of ethnic and religious groups under its rule, leading to a rich tapestry of civilizations. The Ottoman Empire significantly shaped the historical and cultural landscape of the regions it controlled until its dissolution after World War I.