What empire was centered in Constantinople before its dissolution after World War I?

The Ottoman Empire was centered in Constantinople, which played a crucial role as its capital. Following the conquest of Constantinople in 1453, the Ottomans transformed the city into a flourishing center of administration, culture, and commerce, establishing it as one of the most significant cities in the world of that era.

The Ottomans expanded their territories across Southeast Europe, Western Asia, and North Africa, becoming one of the longest-lasting empires in history. The empire continued to exist until the end of World War I, when it faced significant territorial losses and ultimately dissolved in the early 20th century. This dissolution led to the establishment of modern-day Turkey and several other nations that emerged from its former territories.

In contrast, the Byzantine Empire, which also had its capital at Constantinople, had already fallen to the Ottomans before World War I. The Austro-Hungarian Empire was a separate entity in Central Europe and did not have Constantinople as a center, while the Persian Empire, primarily based in modern-day Iran, had no direct connection to Constantinople. Therefore, the historical significance and timeline clearly identify the Ottoman Empire as the correct answer.