Hagia Sophia in modern-day Istanbul was built by the emperor Justinian in the mid-fifth century to replace a church originally built by the first Christian emperor, Constantine the Great, for his new city, Constantinople. Why did "Constantinople get the works"? Unlike the song, it's not "nobody's business but the Turks." If you want to know why the city is now called "Istanbul," you can contact
Prof. Hal Drake.
(Click for Prof. Hal Drake's profile page)