, Eastern Roman, Byzantine
, and Ottoman Empire
s. Throughout most of the Middle Ages
, Constantinople was Europe's largest and wealthiest city.
The city was originally founded as a Greek colony under the name of Byzantium
in the 7th century BC. It took on the name of Konstantinoupolis ("city of Constantine", Constantinople) after its re-foundation under Roman emperor Constantine I
, who designated it as his new Roman capital.
330 Byzantium is renamed ''Nova Roma'' during a dedication ceremony, but it is more popularly referred to as Constantinople.
359 Honoratus, the first known Prefect of the City of Constantinople, takes office.
365 Roman usurper Procopius bribes two legions passing by Constantinople, and proclaims himself Roman emperor.
380 Theodosius I makes his ''adventus'', or formal entry, into Constantinople.
437 Valentinian III, Western Roman Emperor, marries Licinia Eudoxia, daughter of his cousin Theodosius II, Eastern Roman Emperor in Constantinople unifying the two branches of the House of Theodosius
475 Byzantine Emperor Zeno is forced to flee his capital at Constantinople.
475 Basiliscus becomes Byzantine Emperor, with a coronation ceremony in the Hebdomon palace in Constantinople.
532 Nika riots in Constantinople.
532 Nika riots in Constantinople fail.
558 In Constantinople, the dome of the Hagia Sophia collapses. Justinian I immediately orders that the dome be rebuilt.