The failure of the Western Powers to militarily intervene preventing the city from being
conquered by the Ottomans.
Constantinople, which later because Islamabad edit: Constantinus decided to make the Greek city of Byzantium the capital of his empire. We should note that Diocletian had already spent much of his time in Nicomedia, nearby. After the final end of the Byzantine empire the Ottomans used the Greek expression Istanbul which had meant "in the city". European statesmen continued to call it Constantinople until the end of the Ottoman empire. Ataturk moved the capital of the new Turkish state to Ankara. Islamabad is the name of the new post-British capital of Pakistan.
1453 is the year of the final collapse of the Roman empire. It is the year that Constantinople fell to the Ottoman Turks.
The collapse of the USSR.
The Byzantine Empire was the eastern half of the Roman Empire, but when Rome fell to barbaric conquerors such as Alaric the Byzantine Empire stayed strong. Constantinople, named after Constantine, the Roman Emperor who converted to Christianity on the battlefield, was originally called Byzantium, and it was the center of the Byzantine Empire. The two most famous people of the Byzantine Empire was Emperor Justinian and his empress, Theodora. They were famous because of their efforts to reunite the Mediterranean under Roman rule. Unfortunately Theodora died of cancer in June of 548, but she and her husband reconquered the Mediterranean before her death.
The Byzantine Empire collapsed in 1453 AD. This was largely to do with the fact that the Empire's economy had been utterly ruined by the period of civil war that followed the Venetian conquest of Constantinople in the 1200s. Though the Empire did recover somewhat, they simply could not find the money to support an effective military, leading to the loss of just about all of their territory by 1453 in the face of Turkish expansion, something that they were powerless to prevent. The end came when the Turks laid siege to Constantinople o April 6th 1453 and captured it on May 29th. By now, most of the Byzantine Army, like that of its Western Roman counterpart in its final years almost 1000 years earlier, was comprised largely of mercenaries. The fall of Constantinople was not inevitable however, and it could have continued the Roman tradition for much longer. Parts of the empire survived, such as the Despotate of Morea in southern Greece and the Empire of Trebizond in north-eastern Turkey, but these were all taken by the Turks by 1461, thus ending the Byzantine Empire and the Roman Empire as a whole more than two thousand years after the foundation of the Roman Kingdom.
It's a fairly modern name for the East Roman Empire, which continued in existence until 1453. A modern descriptor used to refer to the eastern half of the Roman Empire from the founding of Constantinople (named Nova Roma or new Rome, but the name Constantinople or City of Constantine stuck, so this is what it was called in later centuries) in 340 CE to the fall of Constantinople to the Ottoman Turks in 1451 CE. Interestingly, however, the the last remaining vestige of the Byzantine Empire to remain was the Empire of Trebizond, one of the splinter states formed after the sack of Constantinople in 1204 during the fourth Crusade. It finally fell to the Ottoman Turks in 1461, making it the final vestige of Roman administration in the east.
the final collapse was due to worsening internal problems, the separation of the western empire from the wealthier eastern empire, and increasing outside invasions.
The Ottoman Turks.
No single incident did that, apart of course from the siege and fall of the city of Constantinople itself. Over the preceding centuries, Byzantium already had lost practically all of its eastern lands, including Turkey proper and also had lost its Balkan properties. Basically, it had become little more than a city-State consisting of the city of Constantinople, parts of Greece and a few scraps of land outside the city. For many decades it had already been a client State of the Ottoman Empire, paying a large yearly tribute to the Sultan just to be left in peace. Large parts of Constantinople had become uninhabited and little to nothing was left of its former richness. But Sultan Suleyman considered the taking of the city essential for the success of any plans to expand his territories and influence westward into the Balkan region, which would require full control of the Bosporus waterway that he then needed to cross and that Constantinople now controlled.
balls
the battle of buldge
It will collapse and become a white dwarf