Ringfort


Distribution

Ireland

In Irish language sources they are known by a number of names: ráth, lios, caiseal, cathair and dún. The ráth and lios was an earthen ringfort; the ráth being the enclosing bank and the lios being the open space within. The caiseal and cathair was a stone ringfort. The term dún was usually used for any stronghold of importance, which may or may not be ring-shaped.
In Ireland, over 40,000 sites have been identified as ringforts and it is thought that at least 50,000 ringforts existed on the island. They are common throughout the country, with a mean density of just over one ringfort within any area of. It is likely that many have been destroyed by farming and urbanisation. Mapping in County Cork and Waterford in 1773 showed 73 "earthworks" with only 20 recorded in 1937. However, many hitherto unknown ringforts have been found thanks to early Ordnance Survey maps, aerial photography, and the archaeological work that has accompanied road-building.

England and Wales

In Cornwall, parts of Devon, and south Wales, enclosed settlements share many characteristics with the Irish counterparts, including the circular shape and souterrains, and their continuing occupation from the Iron Age into the early medieval period; the form later influencing the distinctive circular shell-keeps found across the medieval Severnside region. Few Cornish examples have been archaeologically excavated, with the exception of Trethurgy Rounds.

Scandinavia

Hillforts are also known from Scandinavia, of which nineteen can be found on the Swedish island of Öland alone.
These hillforts are not to be confused with Viking ring fortresses, of which seven are known from Denmark and southern Sweden, all from around 980 in the Viking Age. The Viking forts all share a strikingly similar design and are collectively referred to as Trelleborgs, after the first excavated fortress of that type in 1936. All the Viking ring fortresses are believed to have been built within a very short timeframe, during the reign of Harald Bluetooth, but for yet unknown military purposes. They might have served as boot camps for Sweyn Forkbeard's men before his invasion of England in 1013.

Chronology

The debate on chronology is primarily a result of the huge number of ringforts and the failure of any other form of settlement site to survive to modern times in any great quantity from the period before the Early Christian period or from Gaelic Ireland after the Anglo-Norman arrival. Three general theories mark the debate on the chronology of Irish ringforts; firstly the theory that wishes to date ringforts back into the Iron Age period; secondly, the theory that seeks to see the continuation of ringfort habitation into the later medieval and even the Modern Period; finally, the more common and generally accepted theory that ringforts were a product of the second half of the first millennium, a theory which has been given greater definition by [|Matthew Stout] in recent years. According to the authoritative New History of Ireland, "archaeologists are agreed that the vast bulk of them are the farm enclosures of the well-to-do of early medieval Ireland".

Theories

The theories that the ringfort either pre- or post-dates the Early Middle Ages in Ireland, are both based on essentially the same premise, as is highlighted here by Tadhg O'Keefe in relation to the latter argument:

Dating from the Iron Age

The conjecture that ringforts can be seen to have evolved from and be part of an Iron Age tradition has been expanded by [|Darren Limbert]. This hypothesis is based on a number of re-interpretations of the available evidence, as well as concern over the available evidence. As only a small portion of ringforts have undergone total excavation, and the fact that these excavations have not taken place on anything like a national level, the evidence is insufficient to place all ringforts and the origins of them within the Early Christian period.
Limbert argues instead, that the ringfort should be seen in the context of a variety of similar developments in Britain and the European Continent, particularly in Iberia and Gaul. While conceding that most ringforts were built in the Early Christian period, he suggests a link between the arrival of Eóganachta dynasty in Munster, and the introduction of ringforts. In support of this he notes that: "The other major Eoganachta ringforts of Ballycatten, Garranes and possibly Garryduff, despite limited stratigraphic discernment, have produced artefacts of ambiguously early origins. Also, their defensive nature,... supports an intrusion of a Celtic warrior caste..." The similarity with South Welsh 'raths' and Cornish 'rounds' suggests a degree of cultural interaction between Western British and Irish populations, however differences in dates of occupation mean this cannot be confirmed.
On the island of Öland, Sweden, nineteen ringforts have been identified, including Eketorp, a site that has been completely excavated and that one may visit. Currently, excavations are ongoing at Sandby borg, which was the site of a massacre in the 5th century AD.
It is also possible that the Hill of Tara is an early type of ringfort.

Use continuing into the later medieval period

At the opposite end of the spectrum to this, the argument has been put forward to suggest that ringforts were in use, if not being built in the later medieval and possibly Early Modern period in Gaelic Ireland. This argument is primarily two-fold, ringforts were gradually converted into what would more generally be considered as mottes today, and there is some slight and contentious archaeological evidence that points to the habitation and construction of obvious ringforts in this later medieval period.
From a morphological viewpoint, and probably also from the view of the contemporary person, there is little to distinguish a ringfort from a small earthwork castle or motte. Indeed, in a number of cases it would appear that either the Normans converted existing ringforts into the basis of the future construction of mottes and earthworks, or that the Gaelic Irish, through the use of raised raths, sought to emulate the Norman example. Some L Plan Castles, such as Balingarry Castle in Ireland originated as ringforts.
This theory is supported by a number of excavations, most notably the results of the Castleskreen II excavation, and the raised raths at Piper's Fort, and Ballyfounder, County Limerick, which seem to have been converted into mottes in the case of Castleskreen II or in the later cases, built in imitation of such constructions. If one were to accept a defensive function for ringforts, it would seem that after the introduction of more complex forms of defensive structures into Ireland this would naturally lead to the use of ringforts and raised raths in a manner analogous to the contemporary Norman buildings.

7th to 10th centuries

While it would seem probable that some ringforts may have seen continuation in the later medieval period as adapted or imitation mottes it seems doubtful if the continuation that ringforts were still being built on a more general scale throughout the country, and the evidence put forward for such a theory would appear quite slim. The excavations which support such a theory, most notably Rynne's excavation at Shannon Airport of Garrynamona which is suggestive of a 15th-century ringfort being constructed, have failed to win any form of widespread popular acceptance.
The most common theory however is that ringforts are the product of the later half of the first millennium, a theory that has generally been supported by the excavated evidence of the period, and one that has seen remarkable if slightly ambitious definition from Matthew Stout. In his work The Irish Ringfort, Stout has sought to use the radiocarbon and dendrochronological dates from 114 ringforts and associated sites to find an overall date pattern for the use of ringforts; and through this has placed over half of all ringforts in the period 540 AD to 884 AD with two-thirds falling within the 600 AD to 900 AD period. While this method has brought the dating of the ringfort phase of Irish history to an ever more accurate level, certain problems do exist with his analysis. Firstly, as he notes himself, the research is overly biased towards Ulster, and the dates come from a very small sample of sites relative to the total number of ringforts. Finally, Stout's use of radiocarbon dating is to one standard deviation, which means that there is an approximately one third chance that the data offered is inaccurate by up to 100 years on either side. Yet despite these difficulties, Stout's analysis has to a large extent brought a degree of finality to the debate of the dating and use of ringforts, with it being more or less certain that the vast majority were probably occupied and constructed in the second half of the first millennium. His analysis is further supported by Gerald of Wales who commented that ringforts in Ireland, were known as Daneforts, and that they had been abandoned by the late 12th century when he was in Ireland.

Functions

Agriculture

It has traditionally been understood that the ringfort was a dispersed farmstead, the home of a free man and his family and the centre of a mixed agricultural economy to a large extent dominated by cattle. A medieval Irish law text describes a prosperous farmer – boaire in Old Irish – as having a dwelling house, a sheep-pen, a calf-pen and a pig-sty – it would seem that these were all within the ring-fort.
Evidence suggests that not all ringforts were farmsteads, but rather that ringforts appeared to have fulfilled a variety of other functions as well. The most celebrated example of this is Garryduff II in County Cork. This ringfort which is overlooked and in close proximity to another larger ringfort, Garryduff I, has provided archaeologists with no evidence of habitation or settlement, and the pre-eminent theory at the moment is that this ringfort was possibly used as an enclosure for livestock.
However, this interpretation is still the most commonly held in academic, archaeological and popular debate, although pollen studies and other evidence have greatly modified the traditional view of the dominance of livestock as opposed to arable farming in early medieval Ireland, making it clear that cereal production was much more important than once thought in the early medieval period.