-
For over a millennium, Constantinople stood as the imperial fortress of Christendom and the capital of the Byzantine Empire. Protected by the legendary three-tiered Theodosian Walls, the city had survived dozens of sieges. However, by the mid-15th century, the once-great empire had shrunk to little more than the city itself and surrounding territories.
-
In the spring of 1453, the 21-year-old Ottoman Sultan Mehmed II gathered an army of over 80,000 men to lay siege to the city. The assault introduced a turning point in military history: the heavy deployment of colossal gunpowder cannons engineered by the Hungarian gunsmith Orban. After a 53-day siege, Ottoman forces breached the battered gates on May 29. The fall of the city sent shockwaves across Europe, driving Greek scholars westward into Italy—an exodus that directly catalyzed the European Renaissance.
15th Century (1453)
