Proto-Celtic: *Ynys Wydryn
|Location||Glastonbury, Somerset, England|
|Governing body||National Trust|
|Official name: St Michael's Church, monastic remains, and other settlement remains on Glastonbury Tor|
|Designated||24 April 1954|
|Official name: St Michael's Church Tower|
|Designated||21 June 1950|
Glastonbury Tor is a hill at Glastonbury in the English county of Somerset, topped by the roofless St Michael's Tower, a Grade I listed building. The whole site is managed by the National Trust, and has been designated a scheduled monument.
The conical hill of clay and Blue Lias rises from the Somerset Levels. It was formed when surrounding softer deposits were eroded, leaving the hard cap of sandstone exposed. The slopes of the hill are terraced, but the method by which they were formed remains unexplained. Artefacts from human visitation have been found, dating from the Iron Age to Roman eras.
Several buildings were constructed on the summit during the Saxon and early medieval periods; they have been interpreted as an early church and monks' hermitage. The head of a wheel cross dating from the 10th or 11th century has been recovered. The original wooden church was destroyed by an earthquake in 1275, and the stone Church of St Michael built on the site in the 14th century. Its tower remains, although it has been restored and partially rebuilt several times. Archaeological excavations during the 20th century sought to clarify the background of the monument and church, but some aspects of their history remain unexplained. The Tor is mentioned in Celtic mythology, particularly in myths linked to King Arthur, and has a number of other enduring mythological and spiritual associations.
The origin of the name "Glastonbury" is unclear, but when the settlement was first recorded in the late 7th and early 8th centuries it was called Glestingaburg. Of the latter name, Glestinga is obscure, and may derive from an Old English word or Celtic personal name. The second half of the name, -burg, is Anglo-Saxon in origin and could refer to either a fortified place such as a burh or, more likely, a monastic enclosure. It may derive from a person or kindred group named Glast.
Tor is an English word referring to a high rock or a hill, deriving from the Old English torr.[note 1] The Celtic name of the Tor was Ynys Wydryn, or sometimes Ynys Gutrin, meaning "Isle of Glass". At this time the plain was flooded, the isle becoming a peninsula at low tide.
Location and landscape
The Tor is in the middle of the Summerland Meadows, part of the Somerset Levels, rising to an elevation of 158 metres (518 ft). The plain is reclaimed fen above which the Tor is clearly visible for miles around. It has been described as an island but actually sits at the western end of a peninsula washed on three sides by the River Brue.
The Tor is formed from rocks dating from the early Jurassic Period, namely varied layers of Lias Group strata. The uppermost of these, forming the Tor itself, are a succession of rocks assigned to the Bridport Sand Formation. These rocks sit upon strata forming the broader hill on which the Tor stands; the various layers of the Beacon Limestone Formation and the Dyrham Formation. The Bridport Sands have acted as a caprock protecting the lower layers from erosion. The iron-rich waters of Chalice Well, a spring at the base of the Tor, flow out as an artesian well impregnating the sandstone around it with iron oxides that have reinforced it to produce the caprock. Iron-rich but oxygen-poor water in the aquifer carries dissolved iron (II) "ferrous" iron, but as the water surfaces and its oxygen content rises, the oxidised iron (III) "ferric" iron drops out as insoluble "rusty" oxides that bind to the surrounding stone, hardening it.
The low-lying damp ground can produce a visual effect known as a Fata Morgana when the Tor appears to rise out of the mist. This optical phenomenon occurs because rays of light are strongly bent when they pass through air layers of different temperatures in a steep thermal inversion where an atmospheric duct has formed. The Italian term Fata Morgana is derived from the name of Morgan le Fay, a powerful sorceress in Arthurian legend.
The sides of the Tor have seven deep, roughly symmetrical terraces. Their formation remains a mystery with many possible explanations. They may have been formed as a result of natural differentiation of the layers of Lias stone and clay used by farmers during the Middle Ages as terraced hills to make ploughing for crops easier. Author Nicholas Mann questions this theory. If agriculture had been the reason for the creation of the terraces, it would be expected that the effort would be concentrated on the south side, where the sunny conditions would provide a good yield, but the terraces are equally deep on the northern side, which would provide little benefit. Additionally, none of the other slopes of the island have been terraced, even though the more sheltered locations would provide a greater return on the labour involved. Alternatively, the flattened paths may have been created by the hooves of grazing cattle.
Other explanations have been suggested for the terraces, including the construction of defensive ramparts. Iron Age hill forts including the nearby Cadbury Castle in Somerset show evidence of extensive fortification of their slopes. The normal form of ramparts is a bank and ditch, but there is no evidence of this arrangement on the Tor. South Cadbury, one of the most extensively fortified places in early Britain, had three concentric rings of banks and ditches supporting an 18-hectare (44-acre) enclosure. By contrast, the Tor has seven rings and very little space on top for the safekeeping of a community. It has been suggested that a defensive function may have been linked with Ponter's Ball Dyke, a linear earthwork about 1 kilometre (0.62 mi) east of the Tor. It consists of an embankment with a ditch on the east side. The purpose and provenance of the dyke are unclear. It is possible that it was part of a longer defensive barrier associated with New Ditch, three miles to the south-west, which is built in a similar manner. It has been suggested by Ralegh Radford that it is part of a great Celtic sanctuary, probably 3rd century BC, while others, including Philip Rahtz, date it to the post-Roman period and link it to the Dark Age occupation on Glastonbury Tor. The 1970 excavation suggests the 12th century or later. The historian Ronald Hutton suggests that the terraces are the remains of a medieval "spiral walkway" created for pilgrims to reach the church on the summit, similar to that at Whitby Abbey.
Another suggestion is that the terraces are the remains of a three-dimensional labyrinth, first proposed by Geoffrey Russell in 1968. He states that the classical labyrinth (Caerdroia), a design found all over the Neolithic world, can be easily transposed onto the Tor, so that by walking around the terraces a person eventually reaches the top in the same pattern. Evaluating this hypothesis is not easy. A labyrinth would very likely place the terraces in the Neolithic era, but given the amount of occupation since then, there may have been substantial modifications by farmers and/or monks and conclusive excavations have not been carried out. In a more recent book, Hutton writes that "the labyrinth does not seem to be an ancient sacred structure".
Some Neolithic flint tools recovered from the top of the Tor show that the site has been visited, perhaps with lasting occupation, since prehistory. The nearby remains of Glastonbury Lake Village were identified at the site in 1892, which confirmed that there was an Iron Age settlement in about 300–200 BC on what was an easily defended island in the fens. There is no evidence of permanent occupation of the Tor, but finds, including Roman pottery, do suggest that it was visited on a regular basis.
Excavations on Glastonbury Tor, undertaken by a team led by Philip Rahtz between 1964 and 1966, revealed evidence of Dark Age occupation during the 5th to 7th centuries around the later medieval church of St. Michael. Finds included postholes, two hearths including a metalworker's forge, two burials oriented north-south (thus unlikely to be Christian), fragments of 6th-century Mediterranean amphorae (vases for wine or cooking oil), and a worn hollow bronze head which may have topped a Saxon staff.
During the late Saxon and early medieval period there were at least four buildings on the summit. The base of a stone cross demonstrates Christian use of the site during this period and it may have been a hermitage. The broken head of wheel cross dated to the 10th or 11th centuries was found part way down the hill and may have been the head of the cross that stood on the summit. The head of the cross is now in the Museum of Somerset in Taunton.
The earliest timber church, which was dedicated to St Michael, is believed to have been constructed in the 11th or 12th century from which post holes have since been identified. Associated monk cells have also been identified.
St Michael's Church was destroyed by an earthquake on 11 September 1275. According to the British Geological Survey, the earthquake was felt in London, Canterbury and Wales, and was reported to have destroyed many houses and churches in England. The force was greater than 7 MSK, with its epicentre in the area around Portsmouth or Chichester, South England.
A second church, also dedicated to St Michael, was built of local sandstone in the 14th century by the Abbot Adam of Sodbury, incorporating the foundations of the previous building. It included stained glass and decorated floor tiles. There was also a portable altar of Purbeck Marble; it is likely that the Monastery of St Michael on the Tor was a daughter house of Glastonbury Abbey. In 1243 Henry III granted a charter for a six-day fair at the site.
St Michael's Church survived until the Dissolution of the Monasteries in 1539 when, except for the tower, it was demolished. The Tor was the place of execution where Richard Whiting, the last Abbot of Glastonbury Abbey, was hanged, drawn and quartered along with two of his monks, John Thorne and Roger James. The three-storey tower of St Michael's Church survives. It has corner buttresses and perpendicular bell openings. There is a sculptured tablet with an image of an eagle below the parapet.
In 1786, Richard Colt Hoare of Stourhead bought the Tor and funded repair of the tower in 1804, including the rebuilding of the north-east corner. It was then passed on through several generations to the Reverend George Neville and included in the Butleigh Manor until the 20th century. In was then bought as a memorial to a former Dean of Wells, Thomas Jex-Blake, who died in 1915.
The National Trust took control of the Tor in 1933, but repairs were delayed until after World War II. During the 1960s, excavations identified cracks in the rock, suggesting the ground had moved in the past. This, combined with wind erosion, started to expose the footings of the tower, which were repaired with concrete. Erosion caused by the feet of the increasing number of visitors was also a problem and paths were laid to enable them to reach the summit without damaging the terraces. After 2000, enhancements to the access and repairs to the tower, including rebuilding of the parapet, were carried out. These included the replacement of some of the masonry damaged by earlier repairs with new stone from the Hadspen Quarry.
A model of Glastonbury Tor was incorporated into the opening ceremony of the 2012 Summer Olympics in London. As the athletes entered the stadium, their flags were displayed on the terraces of the model.
Mythology and spirituality
The Tor seems to have been called Ynys yr Afalon (meaning "The Isle of Avalon") by the Britons and is believed by some, including the 12th and 13th-century writer Gerald of Wales, to be the Avalon of Arthurian legend. The Tor has been associated with the name Avalon, and identified with King Arthur, since the alleged discovery of his and Queen Guinevere's neatly labelled coffins in 1191, recounted by Gerald of Wales. Author Christopher L. Hodapp asserts in his book The Templar Code for Dummies that Glastonbury Tor is one of the possible locations of the Holy Grail, because it is close to the monastery that housed the Nanteos Cup.
With the 19th-century resurgence of interest in Celtic mythology, the Tor became associated with Gwyn ap Nudd, the first Lord of the Underworld (Annwn) and later King of the Fairies. The Tor came to be represented as an entrance to Annwn or to Avalon, the land of the fairies.
A persistent myth of more recent origin is that of the Glastonbury Zodiac, a purported astrological zodiac of gargantuan proportions said to have been carved into the land along ancient hedgerows and trackways, in which the Tor forms part of the figure representing Aquarius. The theory was first put forward in 1927 by Katherine Maltwood, an artist with an interest in the occult, who thought the zodiac was constructed approximately 5,000 years ago. But the vast majority of the land said by Maltwood to be covered by the zodiac was under several feet of water at the proposed time of its construction, and many of the features such as field boundaries and roads are recent.
The Tor and other sites in Glastonbury have also been significant in Goddess worship, with the flow from the Chalice Well representing menstrual flow and the Tor being seen as either a breast or the whole figure of the Goddess. This has been celebrated with an effigy of the Goddess leading an annual procession up the Tor.
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