Hagia Sophia is the one of the most visited museums and most prominent monuments in the world in terms of art and the history of architecture. It has also been called “the eighth wonder of the world” by East Roman Philon as far back as the 6th century.
The current Hagia Sophia is the third construction, done in a different architectural style, even though it occupies the same location as the previous two. The original building was constructed by the most important architects of the period (527-565), Anthemios (Tralles) and Isidoros (Miletus), under the order of Emperor Justinianos. It is mentioned in the resources that during its construction period, the two prominent architects each had 100 architects working under them, who in turn had 100 workers each working under them.
The construction of the Hagia Sophia began on February 23, 532. It was completed before long, approximately within 5 years and 10 months. It was then opened to divine service with a great ceremony on December 27, 537.
It was used as a church for 916 years but, following the conquest of Istanbul by Fatih Sultan Mehmed, the Hagia Sophia was converted into mosque. Afterwards, it was used as a mosque for 482 years. Under the order of Atatürk and the decision of the Council of Ministers, Hagia Sophia was converted into a museum in 1935.