Emperor Justinian rebuilt Constantinople.
It remained Constantinople for many centuries after the Ottoman invasion on 1453 AD. It was not renamed Istanbul until 1923.
Emperor Justinian I and his wife the Empress Theodora.
6th century AD
Constantinople becomes capital of Roman Empire
Constantine I founded Constantinople in the year of 327 AD .
It's the year that Constantinople fell to the Ottoman Sultan and the Byzantine Empire came to its end after an existence of a thousand years.
The sack of constantinople in the 4th crusade
constantinople
330 AD
The Hagia Sophia Church
Nika riots happened in 532.