537
Hagia Sophia in Istanbul, with the minarets added after 1453.Image: culture · Europe
Justinian dedicates Hagia Sophia
On 27 December 537 the Emperor Justinian dedicated the new church of Hagia Sophia, Holy Wisdom, in Constantinople. It had been built in less than six years, after rioters burned the old church in 532, to a daring design by the mathematicians Anthemius of Tralles and Isidore of Miletus. Its vast dome seemed to float on a ring of light, and for nearly a thousand years it was the largest cathedral in the world. After the Ottoman conquest in 1453 it became a mosque, later a museum, and in 2020 a mosque again.
Source: World History Encyclopedia: Hagia Sophia ↗
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