|Founded in the year 324 by emperor Constantine.
|The city burned in the year 532.
|It was first attacked by Vikings in 860
|In 980 emperor Basil II founded the Varangian Guard as a single unit of
|Conquered for the first time by crusaders from 1204-1261. The city never
fully recovered from this.
|The Sultan Mehmet II, ruler of the Ottoman empire, conquered the city in
|The city was the capital until 1923.