Once a cathedral, then a mosque, and now a museum, the Hagia Sophia is an architectural jewel that has stood for 1,400 years. Its construction began in the 6th century CE, when Istanbul was known as Constantinople, the capital city of the Roman Byzantine Empire.
Its site had previously been home to the Magna Ecclesia, meaning ‘Great Church’ in Latin, which was burned down during riots in 404 CE, and then another church, which was destroyed during the Nika Revolt in 532 CE. At that time, Emperor Justinian I was the ruler of the empire, and once the revolt against him had been suppressed, he ordered a grand new cathedral to be built. He commissioned Anthemius of Tralles, a mathematician and physicist, and Elder Isidore of Miletus, a professor of…