Tower of the Winds
Encyclopedia
The Tower of the Winds, also called horologion
Horologion
The 'Horologion' , or Book of Hours, provides the fixed portions of the Daily Cycle of services as used by the Eastern Orthodox and Eastern Catholic churches...

(timepiece), is an octagonal Penteli
Penteli
Pentéli or Pendeli, , and Vrilissos or Vrilittos , Mendeli in medieval times) is a tall mountain and mountain range situated northeast of Athens and southwest of Marathon. Its elevation is 1,109 m...

c marble
Marble
Marble is a metamorphic rock composed of recrystallized carbonate minerals, most commonly calcite or dolomite.Geologists use the term "marble" to refer to metamorphosed limestone; however stonemasons use the term more broadly to encompass unmetamorphosed limestone.Marble is commonly used for...

 clocktower on the Roman
Ancient Rome
Ancient Rome was a thriving civilization that grew on the Italian Peninsula as early as the 8th century BC. Located along the Mediterranean Sea and centered on the city of Rome, it expanded to one of the largest empires in the ancient world....

 agora
Agora
The Agora was an open "place of assembly" in ancient Greek city-states. Early in Greek history , free-born male land-owners who were citizens would gather in the Agora for military duty or to hear statements of the ruling king or council. Later, the Agora also served as a marketplace where...

in Athens
Athens
Athens , is the capital and largest city of Greece. Athens dominates the Attica region and is one of the world's oldest cities, as its recorded history spans around 3,400 years. Classical Athens was a powerful city-state...

. The structure features a combination of sundial
Sundial
A sundial is a device that measures time by the position of the Sun. In common designs such as the horizontal sundial, the sun casts a shadow from its style onto a surface marked with lines indicating the hours of the day. The style is the time-telling edge of the gnomon, often a thin rod or a...

s, a water clock
Water clock
A water clock or clepsydra is any timepiece in which time is measured by the regulated flow of liquid into or out from a vessel where the amount is then measured.Water clocks, along with sundials, are likely to be the oldest time-measuring instruments, with the only exceptions...

 and a wind vane. It was supposedly built by Andronicus of Cyrrhus
Andronicus of Cyrrhus
Andronicus of Cyrrhus or Andronicus Cyrrhestes,son of Hermias, was a Greek astronomer who flourished about 100 BC....

 around 50 BC
Anno Domini
and Before Christ are designations used to label or number years used with the Julian and Gregorian calendars....

, but according to other sources might have been constructed in the 2nd century BC before the rest of the forum
Forum (Roman)
A forum was a public square in a Roman municipium, or any civitas, reserved primarily for the vending of goods; i.e., a marketplace, along with the buildings used for shops and the stoas used for open stalls...

.

Site

The 12-metre-tall structure has a diameter
Diameter
In geometry, a diameter of a circle is any straight line segment that passes through the center of the circle and whose endpoints are on the circle. The diameters are the longest chords of the circle...

 of about 8 metres and was topped in antiquity by a weathervane-like Triton that indicated the wind
Anemoi
In Greek mythology, the Anemoi were Greek wind gods who were each ascribed a cardinal direction from which their respective winds came , and were each associated with various seasons and weather conditions...

 direction. Below the frieze
Frieze
thumb|267px|Frieze of the [[Tower of the Winds]], AthensIn architecture the frieze is the wide central section part of an entablature and may be plain in the Ionic or Doric order, or decorated with bas-reliefs. Even when neither columns nor pilasters are expressed, on an astylar wall it lies upon...

 depicting the eight wind deities — Boreas (N), Kaikias (NE), Eurus (E), Apeliotes (SE), Notus (S), Livas (SW), Zephyrus (W), and Skiron (NW) — there are eight sundial
Sundial
A sundial is a device that measures time by the position of the Sun. In common designs such as the horizontal sundial, the sun casts a shadow from its style onto a surface marked with lines indicating the hours of the day. The style is the time-telling edge of the gnomon, often a thin rod or a...

s. In its interior, there was a water clock
Water clock
A water clock or clepsydra is any timepiece in which time is measured by the regulated flow of liquid into or out from a vessel where the amount is then measured.Water clocks, along with sundials, are likely to be the oldest time-measuring instruments, with the only exceptions...

 (or clepsydra), driven by water coming down from the Acropolis
Acropolis of Athens
The Acropolis of Athens or Citadel of Athens is the best known acropolis in the world. Although there are many other acropoleis in Greece, the significance of the Acropolis of Athens is such that it is commonly known as The Acropolis without qualification...

. Recent research has shown that the considerable height of the tower was motivated by the intention to place the sundials and the wind-vane at a visible height on the Agora, making it effectively an early example of a clocktower. According to the testimony of Vitruvius
Vitruvius
Marcus Vitruvius Pollio was a Roman writer, architect and engineer, active in the 1st century BC. He is best known as the author of the multi-volume work De Architectura ....

 and Varro
Marcus Terentius Varro
Marcus Terentius Varro was an ancient Roman scholar and writer. He is sometimes called Varro Reatinus to distinguish him from his younger contemporary Varro Atacinus.-Biography:...

, Andronicus of Cyrrhus designed the structure.

In early Christian
Christian
A Christian is a person who adheres to Christianity, an Abrahamic, monotheistic religion based on the life and teachings of Jesus of Nazareth as recorded in the Canonical gospels and the letters of the New Testament...

 times, the building was used as the bell-tower of a Byzantine Church. Under Ottoman rule it became a tekke
Khanqah
A Khanqah, Khaniqah , ribat, zawiya, or tekke is a building designed specifically for gatherings of a Sufi brotherhood, or tariqa, and is a place for spiritual retreat and character reformation...

 and was used by whirling dervishes. At that time it was buried up to half its height, and traces of this can be observed in the interior, where Turkish inscriptions may be found on the walls. It was fully excavated in the 19th century by the Archaeological Society of Athens
Archaeological Society of Athens
The Archaeological Society of Athens is an independent learned society. Also termed the Greek Archaeological Society, it was founded in 1837, just a few years after the establishment of the modern Greek State, with the aim of encouraging archaeological excavations, maintenance, care and exhibition...

.

The design of the 18th-century Radcliffe Observatory
Radcliffe Observatory
Radcliffe Observatory was the astronomical observatory of Oxford University from 1773 until 1934, when the Radcliffe Trustees sold it and erected a new observatory in Pretoria, South Africa. It is a grade I listed building.- History :...

 in Oxford
Oxford
The city of Oxford is the county town of Oxfordshire, England. The city, made prominent by its medieval university, has a population of just under 165,000, with 153,900 living within the district boundary. It lies about 50 miles north-west of London. The rivers Cherwell and Thames run through...

, England
England
England is a country that is part of the United Kingdom. It shares land borders with Scotland to the north and Wales to the west; the Irish Sea is to the north west, the Celtic Sea to the south west, with the North Sea to the east and the English Channel to the south separating it from continental...

, is based on the Tower of the Winds, as is the mausoleum
Mausoleum
A mausoleum is an external free-standing building constructed as a monument enclosing the interment space or burial chamber of a deceased person or persons. A monument without the interment is a cenotaph. A mausoleum may be considered a type of tomb or the tomb may be considered to be within the...

 of the founder of the Greek National Library
National Library of Greece
The National Library of Greece is situated near the center of city of Athens. It was designed by the Danish architect Theophil Freiherr von Hansen, as part of his famous Trilogy of neo-classical buildings including the Academy of Athens and the original building of the Athens...

 Panayis Vagliano
Panayis Athanase Vagliano
Panayis Athanase Vagliano a.k.a. Panaghis Athanassiou Vallianos, was a merchant and shipowner, acclaimed as the 'father of modern Greek shipping'....

 at West Norwood Cemetery
West Norwood Cemetery
West Norwood Cemetery is a cemetery in West Norwood in London, England. It was also known as the South Metropolitan Cemetery.One of the first private landscaped cemeteries in London, it is one of the Magnificent Seven cemeteries of London, and is a site of major historical, architectural and...

, London
London
London is the capital city of :England and the :United Kingdom, the largest metropolitan area in the United Kingdom, and the largest urban zone in the European Union by most measures. Located on the River Thames, London has been a major settlement for two millennia, its history going back to its...

. It has also inspired the 15th-century Torre del Marzocco in Livorno
Livorno
Livorno , traditionally Leghorn , is a port city on the Tyrrhenian Sea on the western edge of Tuscany, Italy. It is the capital of the Province of Livorno, having a population of approximately 160,000 residents in 2009.- History :...

.
There is a similar tower in Sevastopol
Sevastopol
Sevastopol is a city on rights of administrative division of Ukraine, located on the Black Sea coast of the Crimea peninsula. It has a population of 342,451 . Sevastopol is the second largest port in Ukraine, after the Port of Odessa....

, built in 1849. Another building based on the design of the Tower of the Winds is the Temple of the Winds, which stands in the grounds of Mount Stewart
Mount Stewart
Mount Stewart is an 18th-century house and garden in County Down, Northern Ireland, owned by the National Trust. Situated on the east shore of Strangford Lough, a few miles outside the town of Newtownards and near Greyabbey, it was the home of the Vane-Tempest-Stewart family, Marquesses of...

 near Newtownards
Newtownards
Newtownards is a large town in County Down, Northern Ireland. It lies at the most northern tip of Strangford Lough, 10 miles east of Belfast, on the Ards Peninsula. Newtownards is the largest town in the Borough of Ards. According to the 2001 Census, it has a population of 27,821 people in...

 in Northern Ireland
Northern Ireland
Northern Ireland is one of the four countries of the United Kingdom. Situated in the north-east of the island of Ireland, it shares a border with the Republic of Ireland to the south and west...

.

Further reading

  • Joseph V. Noble; Derek J. de Solla Price: The Water Clock in the Tower of the Winds, American Journal of Archaeology
    American Journal of Archaeology
    The American Journal of Archaeology , the peer-reviewed journal of the Archaeological Institute of America, has been published since 1897...

    , Vol. 72, No. 4 (1968), pp. 345–355

External links

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