In April–May 1453, the city of Constantinople faced its final and most decisive siege. Led by the young Ottoman sultan Mehmed II, Ottoman forces surrounded the last capital of the Byzantine Empire, defended by Emperor Constantine XI. This documentary explores the final days of Constantinople, the collapse of the Byzantine Empire, and the moment that marked the true end of the Roman Empire. We examine the military strategies, political context, technological changes, and global consequences of the siege that reshaped Europe, the Mediterranean, and the balance of world power. The fall of Constantinople did not only end an empire. It opened the door to the rise of the Ottoman Empire and helped trigger the Age of Exploration, shaping the modern world we live in today. This video is part of the WORLD HISTORY EXPLAINED series, focused on major turning points that changed global history. #WorldHistory #Constantinople1453 #ByzantineEmpire #OttomanEmpire #RomanEmpire #HistoryExplained #MedievalHistory #SiegeOfConstantinople #GlobalHistory #HistoricalDocumentary #WorldHistory #HistoryExplained #GlobalHistory #Geopolitics #PoliticalEconomy #WorldAffairs #HistoryDocumentary #Empires #Civilizations #PowerAndPolitics