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Basilica Cistern
The Basilica Cistern, or Cisterna Basilica (Greek: Βασιλική Κινστέρνα, Turkish: Yerebatan Sarnıcı or Yerebatan Sarayı, "Subterranean Cistern" or "Subterranean Palace"), is the largest of several hundred ancient cisterns that lie beneath the city of Istanbul, Turkey. The cistern, located 150 metres (490 ft) southwest of the Hagia Sophia on the historical peninsula of Sarayburnu, was built in the 6th century during the reign of Byzantine emperor Justinian I. Today it is kept with little water, for public access inside the space.
This subterranean cistern was called Basilica because it was located under a large public square, the Stoa Basilica, on the First Hill of Constantinople. Prior to its construction, a great basilica stood on the spot. It had been built during the Early Roman Age between the 3rd and 4th centuries as a commercial, legal and artistic centre. The basilica was reconstructed by Illus after a fire in 476.[citation needed]
Ancient texts indicated that the basilica cistern contained gardens surrounded by a colonnade that faced the Hagia Sophia. According to ancient historians, Emperor Constantine built a structure that was later reconstructed and enlarged by Emperor Justinian after the Nika riots of 532, which devastated the city.[citation needed]
Historical texts claim that 7,000 slaves were involved in the construction of the cistern.
The enlarged cistern provided a water filtration system for the Great Palace of Constantinople and other buildings on the First Hill, and continued to provide water to the Topkapı Palace after the Ottoman conquest in 1453 and into modern times.[citation needed]
The existence of the cistern was eventually forgotten by all but the locals who still drew water from it until, in 1565, the French traveller Petrus Gyllius left a record of it. Gyllius recorded being rowed in between the columns and seeing fish swimming in the water beneath the boat.
The first major modern restoration of the Basilica Cistern was undertaken by the Istanbul Metropolitan Municipality between 1985 and 1987. More than 50,000 tons of silt were removed from the reservoir, uncovering the Medusa-head column bases. Elevated wooden walkways were introduced, allowing the structure to open to the public as a museum in 1987.
A comprehensive restoration was carried out between 2020 and 2022 by the İBB Miras team. The deteriorated iron tie-rods were replaced with stainless-steel compression rods, anchored with star-shaped plates, to improve seismic resilience.
Basilica Cistern
The Basilica Cistern, or Cisterna Basilica (Greek: Βασιλική Κινστέρνα, Turkish: Yerebatan Sarnıcı or Yerebatan Sarayı, "Subterranean Cistern" or "Subterranean Palace"), is the largest of several hundred ancient cisterns that lie beneath the city of Istanbul, Turkey. The cistern, located 150 metres (490 ft) southwest of the Hagia Sophia on the historical peninsula of Sarayburnu, was built in the 6th century during the reign of Byzantine emperor Justinian I. Today it is kept with little water, for public access inside the space.
This subterranean cistern was called Basilica because it was located under a large public square, the Stoa Basilica, on the First Hill of Constantinople. Prior to its construction, a great basilica stood on the spot. It had been built during the Early Roman Age between the 3rd and 4th centuries as a commercial, legal and artistic centre. The basilica was reconstructed by Illus after a fire in 476.[citation needed]
Ancient texts indicated that the basilica cistern contained gardens surrounded by a colonnade that faced the Hagia Sophia. According to ancient historians, Emperor Constantine built a structure that was later reconstructed and enlarged by Emperor Justinian after the Nika riots of 532, which devastated the city.[citation needed]
Historical texts claim that 7,000 slaves were involved in the construction of the cistern.
The enlarged cistern provided a water filtration system for the Great Palace of Constantinople and other buildings on the First Hill, and continued to provide water to the Topkapı Palace after the Ottoman conquest in 1453 and into modern times.[citation needed]
The existence of the cistern was eventually forgotten by all but the locals who still drew water from it until, in 1565, the French traveller Petrus Gyllius left a record of it. Gyllius recorded being rowed in between the columns and seeing fish swimming in the water beneath the boat.
The first major modern restoration of the Basilica Cistern was undertaken by the Istanbul Metropolitan Municipality between 1985 and 1987. More than 50,000 tons of silt were removed from the reservoir, uncovering the Medusa-head column bases. Elevated wooden walkways were introduced, allowing the structure to open to the public as a museum in 1987.
A comprehensive restoration was carried out between 2020 and 2022 by the İBB Miras team. The deteriorated iron tie-rods were replaced with stainless-steel compression rods, anchored with star-shaped plates, to improve seismic resilience.
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