In 324 AD, Emperor Constantine the Great made the fateful decision to transform the old city of Byzantium into a grand new capital, naming it "New Rome" and consecrating it on May 11, 330 AD. This strategic move solidified the city’s place in history, becoming the heart of the Eastern Roman Empire, later known as the Byzantine Empire.
Constantinople became a symbol of Orthodox Christianity, often referred to as the "cradle of Orthodox Christian civilization." The city's religious and cultural significance cannot be overstated; it was home to some of the most iconic architectural and religious sites in the Christian world. From the mid-fifth to the early-thirteenth century, Constantinople was Europe's largest, most affluent metropolis, a center of commerce, culture, and intellectual activity.