Prehistoric Orkney
Encyclopedia
Prehistoric Orkney refers to a period in the human occupation of the Orkney archipelago of Scotland
Scotland
Scotland is a country that is part of the United Kingdom. Occupying the northern third of the island of Great Britain, it shares a border with England to the south and is bounded by the North Sea to the east, the Atlantic Ocean to the north and west, and the North Channel and Irish Sea to the...

 that was the latter part of these islands' prehistory
Prehistory
Prehistory is the span of time before recorded history. Prehistory can refer to the period of human existence before the availability of those written records with which recorded history begins. More broadly, it refers to all the time preceding human existence and the invention of writing...

. The period of prehistory prior to occupation by the genus Homo is part of the geology of Scotland
Geology of Scotland
The geology of Scotland is unusually varied for a country of its size, with a large number of differing geological features. There are three main geographical sub-divisions: the Highlands and Islands is a diverse area which lies to the north and west of the Highland Boundary Fault; the Central...

. Although some written records
Protohistory
Protohistory refers to a period between prehistory and history, during which a culture or civilization has not yet developed writing, but other cultures have already noted its existence in their own writings...

 refer to Orkney during the Roman invasions of Scotland
Scotland during the Roman Empire
Scotland during the Roman Empire encompasses a period of protohistory from the arrival of Roman legions in c. AD 71 to their departure in 213. The history of the period is complex: the Roman empire influenced every part of Scotland during the period, however the occupation was neither complete nor...

, prehistory in northern Scotland does not end until the commencement of the Early Historic Period
Scotland in the Early Middle Ages
Scotland in the early Middle Ages, between the end of Roman authority in southern and central Britain from around 400 and the rise of the kingdom of Alba in 900, was divided into a series of petty kingdoms. Of these the four most important to emerge were the Picts, the Scots of Dál Riata, the...

 around AD 600.

There are numerous important prehistoric remains in Orkney, especially from the Neolithic
Neolithic
The Neolithic Age, Era, or Period, or New Stone Age, was a period in the development of human technology, beginning about 9500 BC in some parts of the Middle East, and later in other parts of the world. It is traditionally considered as the last part of the Stone Age...

 period, four of which form a World Heritage Site
World Heritage Site
A UNESCO World Heritage Site is a place that is listed by the UNESCO as of special cultural or physical significance...

. There are diverse reasons for the abundance of the archaeological record. The sandstone
Sandstone
Sandstone is a sedimentary rock composed mainly of sand-sized minerals or rock grains.Most sandstone is composed of quartz and/or feldspar because these are the most common minerals in the Earth's crust. Like sand, sandstone may be any colour, but the most common colours are tan, brown, yellow,...

 bedrock provides easily workable stone materials and the wind-blown sands have helped preserve several sites. The relative lack of industrialisation and low incidence of plough
Plough
The plough or plow is a tool used in farming for initial cultivation of soil in preparation for sowing seed or planting. It has been a basic instrument for most of recorded history, and represents one of the major advances in agriculture...

ing also have helped to preserve these ancient monuments. Local tradition hints at both a fear and veneration of these ancient structures (perhaps inherited from the Norse
Norsemen
Norsemen is used to refer to the group of people as a whole who spoke what is now called the Old Norse language belonging to the North Germanic branch of Indo-European languages, especially Norwegian, Icelandic, Faroese, Swedish and Danish in their earlier forms.The meaning of Norseman was "people...

 period of occupation) that may have helped to retain their structural integrity.

Prehistory is conventionally divided into a number of shorter periods but differentiating these various eras of human history is a complex task – their boundaries are uncertain and the changes between them are gradual. The Paleolithic
Paleolithic
The Paleolithic Age, Era or Period, is a prehistoric period of human history distinguished by the development of the most primitive stone tools discovered , and covers roughly 99% of human technological prehistory...

 lasted until the retreat of the ice, the Mesolithic
Mesolithic
The Mesolithic is an archaeological concept used to refer to certain groups of archaeological cultures defined as falling between the Paleolithic and the Neolithic....

 until the adoption of farming and the Neolithic until metalworking
Metalworking
Metalworking is the process of working with metals to create individual parts, assemblies, or large scale structures. The term covers a wide range of work from large ships and bridges to precise engine parts and delicate jewelry. It therefore includes a correspondingly wide range of skills,...

 commenced. A number of the sites span long periods of time and in particular the distinctions between the Neolithic and the later periods are not clear cut. The extraordinary wealth of structures from the Neolithic is not matched either by the early periods, for which the evidence of human occupation is sparse or non-existent, or the later Bronze Age
Bronze Age
The Bronze Age is a period characterized by the use of copper and its alloy bronze as the chief hard materials in the manufacture of some implements and weapons. Chronologically, it stands between the Stone Age and Iron Age...

 which provides a relative dearth of evidence. The subsequent Iron Age
Iron Age
The Iron Age is the archaeological period generally occurring after the Bronze Age, marked by the prevalent use of iron. The early period of the age is characterized by the widespread use of iron or steel. The adoption of such material coincided with other changes in society, including differing...

 supported a return to monumental building, especially of broch
Broch
A broch is an Iron Age drystone hollow-walled structure of a type found only in Scotland. Brochs include some of the most sophisticated examples of drystone architecture ever created, and belong to the classification "complex Atlantic Roundhouse" devised by Scottish archaeologists in the 1980s....

s.

Formal excavations were first recorded in the late 18th century and as they proceeded an understanding of the structures involved progressed from little more than folklore to modern archaeological science. The sites discussed are found on the Orkney Mainland unless otherwise stated.

Paleolithic

No traces have yet been found in Scotland of either a Neanderthal
Neanderthal
The Neanderthal is an extinct member of the Homo genus known from Pleistocene specimens found in Europe and parts of western and central Asia...

 presence or of Homo sapiens during the Pleistocene
Pleistocene
The Pleistocene is the epoch from 2,588,000 to 11,700 years BP that spans the world's recent period of repeated glaciations. The name pleistocene is derived from the Greek and ....

 interglacial
Interglacial
An Interglacial period is a geological interval of warmer global average temperature lasting thousands of years that separates consecutive glacial periods within an ice age...

s. The first indications of humans occur only after the ice retreated in the 11th millennium BC and the current Flandrian interglacial
Flandrian interglacial
The Flandrian interglacial or stage is the name given by geologists and archaeologists in the British Isles to the first, and so far only, stage of the Holocene epoch , covering the period from around 12,000 years ago, at the end of the last glacial period to the present day. As such, it is in...

 began. Since that time the landscape of Orkney has been altered by both human and natural forces. Initially, sea level
Sea level
Mean sea level is a measure of the average height of the ocean's surface ; used as a standard in reckoning land elevation...

s were lower than at present due to the large volume of ice that remained. This meant that the Orkney islands may have been attached to the mainland, as was the present-day island of Great Britain to Continental Europe
Continental Europe
Continental Europe, also referred to as mainland Europe or simply the Continent, is the continent of Europe, explicitly excluding European islands....

. Much of the North Sea
North Sea
In the southwest, beyond the Straits of Dover, the North Sea becomes the English Channel connecting to the Atlantic Ocean. In the east, it connects to the Baltic Sea via the Skagerrak and Kattegat, narrow straits that separate Denmark from Norway and Sweden respectively...

 basin was also dry land until after 4000 BC
Anno Domini
and Before Christ are designations used to label or number years used with the Julian and Gregorian calendars....

. This would have made travel to northern Scotland relatively easy for early human settlers. The subsequent isostatic
Isostasy
Isostasy is a term used in geology to refer to the state of gravitational equilibrium between the earth's lithosphere and asthenosphere such that the tectonic plates "float" at an elevation which depends on their thickness and density. This concept is invoked to explain how different topographic...

 rise of land makes estimating post-glacial coastlines a complex task.

Mesolithic

The very limited archaeological
Archaeology
Archaeology, or archeology , is the study of human society, primarily through the recovery and analysis of the material culture and environmental data that they have left behind, which includes artifacts, architecture, biofacts and cultural landscapes...

 record provides scant evidence of Mesolithic life in Orkney in particular and Scotland north of Inverness
Inverness
Inverness is a city in the Scottish Highlands. It is the administrative centre for the Highland council area, and is regarded as the capital of the Highlands of Scotland...

 in general. "Lithic scatter" sites at Seatter, South Ettit, Wideford Hill, Valdigar and Loch of Stenness
Loch of Stenness
The Loch of Stenness together with the Loch of Harray are the two largest freshwater lochs of Mainland, Orkney. In Old Norse their names are Steinnesvatn and Heraðvatn...

 have produced small polished stone tools and chippings. A charred hazelnut shell, recovered during the excavations at Longhowe in Tankerness
Tankerness
Tankerness is a district in the St Andrews parish in Mainland, Orkney, Scotland. Essentially a peninsula, it is about south-east of Kirkwall and east of Kirkwall Airport. The origin of the place name is uncertain, but it may derive from the Norse personal name "Tannskári"...

 in 2007, has been dated to 6820-6660 BC. However, there is no evidence to suggest whether or not these sites were in year-round occupation and no Mesolithic burial sites have been uncovered anywhere in Scotland to date.

A recently excavated site on Stronsay
Stronsay
Stronsay is an island in Orkney, off the north coast of Scotland. The main village is Whitehall, home to a heritage centre. It is in size, and at its highest point....

 has produced a thousand pieces of flint
Flint
Flint is a hard, sedimentary cryptocrystalline form of the mineral quartz, categorized as a variety of chert. It occurs chiefly as nodules and masses in sedimentary rocks, such as chalks and limestones. Inside the nodule, flint is usually dark grey, black, green, white, or brown in colour, and...

 and what may be evidence of a temporary camp. With a tentative dating of 7000 BC or older it may prove to be the oldest settlement site found so far on Orkney.

About 6000 BC the Storegga Slides of the coast of Norway created a tsunami
Tsunami
A tsunami is a series of water waves caused by the displacement of a large volume of a body of water, typically an ocean or a large lake...

 that reached 25 metres (82 ft) above normal high tides in places. Evidence of widespread coastal inundations from a wave 8 metres (26.2 ft) high has been found as far south as Fife
Fife
Fife is a council area and former county of Scotland. It is situated between the Firth of Tay and the Firth of Forth, with inland boundaries to Perth and Kinross and Clackmannanshire...

 and the impact on shore-dwelling mesolithic societies in Orkney would have been considerable.

Neolithic

The assemblage of monumental Neolithic structures in Orkney is without parallel in the United Kingdom and on the Orkney Mainland provides an entire landscape of features from this period. During this time, complex new societies came to the fore that were a radical departure from the earlier hunter-gatherers and which were capable of creating substantial structures. The Neolithic in Scotland lasted from approximately 4000 to 2200 BC and Orkney as a whole has nearly 3,000 identified Neolithic sites all told. British archaeologists have often interpreted this era as having two distinct phases; the Earlier Neolithic dominated by regional styles of pottery and architecture followed by a relatively abrupt change into the Later Neolithic characterised by new traditions found throughout the British Isles that incorporate structures on a grander scale. In the Orcadian context, there are definite developments during the Neolithic, but the changes are gradual and tend to build on earlier ideas rather than appearing to form two distinct periods. The great Orcadian Neolithic monuments were constructed contemporaneously with the emergence of the Ancient Egyptian culture
Ancient Egypt
Ancient Egypt was an ancient civilization of Northeastern Africa, concentrated along the lower reaches of the Nile River in what is now the modern country of Egypt. Egyptian civilization coalesced around 3150 BC with the political unification of Upper and Lower Egypt under the first pharaoh...

, more than 500 years before the building of the Great Pyramid of Giza
Great Pyramid of Giza
The Great Pyramid of Giza is the oldest and largest of the three pyramids in the Giza Necropolis bordering what is now El Giza, Egypt. It is the oldest of the Seven Wonders of the Ancient World, and the only one to remain largely intact...

 and almost a millennium before the sarsen
Sarsen
Sarsen stones are sandstone blocks found in quantity in the United Kingdom on Salisbury Plain, the Marlborough Downs, in Kent, and in smaller quantities in Berkshire, Essex, Oxfordshire, Dorset and Hampshire...

 stones of Stonehenge
Stonehenge
Stonehenge is a prehistoric monument located in the English county of Wiltshire, about west of Amesbury and north of Salisbury. One of the most famous sites in the world, Stonehenge is composed of a circular setting of large standing stones set within earthworks...

 were erected.

Early dwellings and chambered cairns

Knap of Howar
Knap of Howar
At Knap of Howar on the island of Papa Westray in Orkney, Scotland, a Neolithic farmstead may be the oldest preserved stone house in northern Europe...

 Neolithic farmstead is probably the oldest preserved house in northern Europe. Situated on the island of Papa Westray
Papa Westray
Papa Westray, also known as Papay, is one of the Orkney Islands in Scotland, with a population of 65 at the time of the 2001 Census, now increased to 70 people...

 (which may have been combined with nearby Westray
Westray
Westray is one of the Orkney Islands in Scotland, with a population of around 550 people. Its main village is Pierowall, with a heritage centre, the ruined Lady Kirk and ferries to Papa Westray.-Geography and geology:...

 in the early Neolithic), the farmstead consists of two adjacent rounded rectangular thick-walled buildings with low doorways linked by a passageway. This structure was inhabited for 900 years from 3700 BC but was evidently built on the site of an even older settlement. Unstan ware
Unstan ware
Unstan ware is the name used by archaeologists for a type of finely made and decorated Neolithic pottery from the 4th and 3rd millennia BC. Typical are elegant and distinctive shallow bowls with a band of grooved patterning below the rim, using a technique known as "stab-and-drag". A second version...

 pottery pieces were found on the site, which was only discovered in the 1920s when this part of the coastline was exposed by gales and tides.

The Barnhouse Settlement
Barnhouse Settlement
The Neolithic Barnhouse Settlement is sited by the shore of Loch of Harray, Orkney Mainland, Scotland, not far from the Standing Stones of Stenness. It was discovered in 1984. The base courses of at least 15 houses have been found...

 is a cluster of at least fifteen buildings, including one that may have been used for communal gatherings, occupied between 3200-2950 BC. The design of the houses, which were built above ground level, includes a central hearth, recessed box beds and stone dressers. There is a network of stone drains leading to a common ditch. Pottery of the grooved ware
Grooved ware people
Most Neolithic cultures in Britain are best identified by the pottery remains which they left. A large number of apparently unrelated cultures seem to have produced urns which have characteristic grooves near the top rim, hence the name grooved ware people....

 type, flints and stone tools have been found, as well as three flakes of pitchstone
Pitchstone
Pitchstone is a dull black glassy volcanic rock formed when viscous lava or magma cools swiftly. It is similar to but coarser than obsidian. It is a volcanic glass with a conchoidal fracture , a resinous lustre, and a variable composition. Its colour may be mottled, streaked, or uniform brown,...

 thought to have come from the Isle of Arran
Isle of Arran
Arran or the Isle of Arran is the largest island in the Firth of Clyde, Scotland, and with an area of is the seventh largest Scottish island. It is in the unitary council area of North Ayrshire and the 2001 census had a resident population of 5,058...

.
Skara Brae
Skara Brae
Skara Brae is a large stone-built Neolithic settlement, located on the Bay of Skaill on the west coast of Mainland, Orkney, Scotland. It consists of ten clustered houses, and was occupied from roughly 3180 BCE–2500 BCE...

 consists of ten clustered houses and is northern Europe's most complete Neolithic village. Occupied between 3100–2500 the houses are similar to those at Barnhouse, but they are linked by common passages and were built into a large midden
Midden
A midden, is an old dump for domestic waste which may consist of animal bone, human excrement, botanical material, vermin, shells, sherds, lithics , and other artifacts and ecofacts associated with past human occupation...

 containing ash, bones, shells, stone and organic waste. Only the roofs, which were probably supported by timber or whalebone, would have been visible from the outside. In each case the stone dressers were erected so that they dominated the view on entering the house through the low doors and there are elaborate carvings of unknown meaning on some of the stones in the houses and passages. A variety of bone beads, pins and pendants and four carved stone balls
Carved Stone Balls
Carved Stone Balls are petrospheres, usually round and rarely oval. They have from 3 to 160 protruding knobs on the surface. Their size is fairly uniform, they date from the late Neolithic to possibly the Iron Age and are mainly found in Scotland...

 were also discovered at the site, which was only revealed after a storm in the winter of 1850 ripped away the grass from a covering sand dune. The existing ruins mostly belong to a secondary phase of building with the foundations of the first phase largely hidden from view.

There are two main types of chambered cairn
Chambered cairn
A chambered cairn is a burial monument, usually constructed during the Neolithic, consisting of a cairn of stones inside which a sizeable chamber was constructed. Some chambered cairns are also passage-graves....

 on these islands: the Orkney/Cromarty
Cromarty
The Royal Burgh of Cromarty is a burgh in Ross and Cromarty, Highland, Scotland.-History:It was previously the county town of the former county of Cromartyshire...

 type with a burial chamber approached through a low passage and usually divided into "stalls" by upright stone slabs, and the Maeshowe type (see below), which is a later development with a cruciform layout and an elongated passage.

The island of Rousay
Rousay
Rousay is a small, hilly island about north of Orkney's Mainland, off the north coast of Scotland, and has been nicknamed "the Egypt of the north", due to its tremendous archaeological diversity and importance....

 has a substantial number of prehistoric sites (see also below), including fifteen of such tombs, resulting it becoming known as the "Egypt of the north". Midhowe Chambered Cairn
Midhowe Chambered Cairn
Midhowe is a large Neolithic chambered cairn located on the south shore of the island of Rousay, Orkney, Scotland. The name "Midhowe" comes from the spectacular Bronze Age broch that lies just west of the tomb...

 on the western shore of the island is the finest example. The exterior walls of this large stone burial mound survive to well over head-height and the constituent stones are arranged in a herring bone pattern. The original interior chambers were simple in style and dived into two or three stalls, but were later enlarged to include twelve separate compartments set along a 23 metres (75.5 ft) passageway. There are other substantial tombs at Blackhammer, Taversoe Tuick, and Yarso. Enlargement and elaboration of burial cairns as the Neolithic progressed is a theme found throughout Scotland, and the move from simple and private tombs to larger structures, some with entrances apparently designed for public gatherings may also be linked to the emergence of landscape-scale ceremonial complexes. Other chambered tombs of significance include those at Unstan
Unstan Chambered Cairn
Unstan is a Neolithic chambered cairn located on Mainland, Orkney, Scotland. The tomb was built on a promontory that extends into the Loch of Stenness near the settlement of Howe and the town of Stromness...

 and Bookan on the Mainland and Holm of Papa Westray
Holm of Papa
The Holm of Papa is a very small uninhabited island in the Orkney islands. It is around 15 ha in size...

.

Links of Noltland
Links of Noltland
Links of Noltland is the archaeological site of a Neolithic village near Grobust Bay on the north coast of Westray in Orkney, Scotland.Excavations at the site in the 1980s found a Neolithic building, which is now in the care of Historic Scotland who are funding further excavation...

, a site on the north coast of the island of Westray
Westray
Westray is one of the Orkney Islands in Scotland, with a population of around 550 people. Its main village is Pierowall, with a heritage centre, the ruined Lady Kirk and ferries to Papa Westray.-Geography and geology:...

 has been excavated since the 1980s. In 2009 a lozenge-shaped figurine was discovered, which may have been carved 2500-3000 BC and is believed to be the earliest representation of a human face ever found in Scotland. The face has two dots for eyes, heavy brows and an oblong nose and a pattern of hatches on the body could represent clothing. Archaeologist Richard Strachan described it as a find of "astonishing rarity".

The Heart of Neolithic Orkney

Skara Brae, Maeshowe
Maeshowe
Maeshowe is a Neolithic chambered cairn and passage grave situated on Mainland, Orkney, Scotland. The monuments around Maeshowe, including Skara Brae, were designated a UNESCO World Heritage Site in 1999. It gives its name to the Maeshowe type of chambered cairn, which is limited to Orkney...

, the Ring of Brodgar
Ring of Brodgar
The Ring of Brodgar is a Neolithic henge and stone circle on the Mainland, the largest island in Orkney, Scotland...

 and the Stones of Stenness
Stones of Stenness
The Standing Stones of Stenness is a Neolithic monument on the mainland of Orkney, Scotland. Various traditions associated with the stones survived into the modern era and they form part of the Heart of Neolithic Orkney World Heritage Site...

 together form the Heart of Neolithic Orkney
Heart of Neolithic Orkney
Heart of Neolithic Orkney refers to a group of Neolithic monuments found on the Mainland, one of the islands of Orkney, Scotland. The name was adopted by UNESCO when it proclaimed these sites as a World Heritage Site in 1999....

 UNESCO
UNESCO
The United Nations Educational, Scientific and Cultural Organization is a specialized agency of the United Nations...

 World Heritage Site
World Heritage Site
A UNESCO World Heritage Site is a place that is listed by the UNESCO as of special cultural or physical significance...

 in the western part of the Orkney Mainland and which was inscribed in 1999. This small area has provided a rich archaeological heritage in a location that is relatively remote from both the main centres of population in Scotland and from more densely populated parts of Europe. However, it would be a mistake to imagine that because Orkney is so placed today that this was always so. There is a substantial amount of evidence that suggests that a variety of the smaller islands in the British Isles developed an advanced society in the Neolithic that took several centuries longer to develop on the mainland of Great Britain. It is also clear that whilst the flow of ideas and technologies in Britain has often been from the south to the north, that at this time, it is evident that Orkney played a significant role in the development of British Neolithic culture.

There is also the possibility that tribal differences were part of the Neolithic cultural landscape. Unstan Ware pottery is associated with small settlements like Knap of Howar, and stalled tombs such as Midhowe. Grooved Ware
Grooved ware
Grooved ware is the name given to a pottery style of the British Neolithic. Its manufacturers are sometimes known as the Grooved ware people. Unlike the later Beaker ware, Grooved culture was not an import from the continent but seems to have developed in Orkney, early in the 3rd millennium BC, but...

 pottery on the other hand tends to be associated with larger 'village' settlements like Skara Brae and Barnhouse, and with Maes Howe style tombs.

Maeshowe

Dating from about 3000 BC, Maeshowe is a large chambered cairn and passage grave
Passage grave
thumb|250px|right|A simple passage tomb in [[Carrowmore]] near [[Sligo]] in IrelandA passage grave or passage tomb consists of a narrow passage made of large stones and one or multiple burial chambers covered in earth or stone. Megaliths are usually used in the construction of passage tombs, which...

. "Howe
Howe
Howe from the meaning hill, knoll, or mound may refer to:*a tumulus , in particular a Bowl barrow.Places in the United Kingdom:*Howe, North Yorkshire*Howe, Norfolk*Maeshowe, Orkney*Duggleby Howe, East Yorkshire...

" as an element in a name, from the Old Norse
Old Norse
Old Norse is a North Germanic language that was spoken by inhabitants of Scandinavia and inhabitants of their overseas settlements during the Viking Age, until about 1300....

 word haugr meaning mound or barrow, is common throughout Orkney. The grass mound hides a complex of passages and chambers built of carefully crafted slabs of sandstone that in scale and accomplishment has few equals in prehistoric Europe. It is aligned so that the rear wall of its central chamber, a rough cube of 4.5 cubic metres (5.9 cu yd) is illuminated on the winter solstice
Winter solstice
Winter solstice may refer to:* Winter solstice, astronomical event* Winter Solstice , former band* Winter Solstice: North , seasonal songs* Winter Solstice , 2005 American film...

. It gives its name to the Maeshowe type of chambered cairns, (see above) that include other significant sites such as Cuween Hill, Quanterness and Wideford Hill, and at Quoyness on Sanday
Sanday, Orkney
Sanday is one of the inhabited islands in the Orkney Islands, off the north coast of Scotland. With an area of , it is the third largest of the Orkney Islands. The main centres of population are Lady Village and Kettletoft. Sanday can be reached by Orkney Ferries or plane from Kirkwall on the...

.

After it fell into disuse during the Bronze Age, Maeshowe was re-opened and used centuries later by Vikings from about the 9th to the 12th centuries AD. The Norsemen left a series of runic
Runic alphabet
The runic alphabets are a set of related alphabets using letters known as runes to write various Germanic languages before the adoption of the Latin alphabet and for specialized purposes thereafter...

 inscriptions on the stone walls of the chamber, some of which were left by a group of crusaders in the winter of 1153–54. Over thirty individual inscriptions remain, one of the largest such collections in Europe.

Ring of Brodgar

The Ring of Brodgar
Ring of Brodgar
The Ring of Brodgar is a Neolithic henge and stone circle on the Mainland, the largest island in Orkney, Scotland...

 is a henge
Henge
There are three related types of Neolithic earthwork which are all sometimes loosely called henges. The essential characteristic of all three types is that they feature a ring bank and ditch but with the ditch inside the bank rather than outside...

 and stone circle
Stone circle
A stone circle is a monument of standing stones arranged in a circle. Such monuments have been constructed across the world throughout history for many different reasons....

 104 metres (341.2 ft) in diameter, originally made of 60 stones (of which only 27 remain standing) set within a circular ditch up to 3 metres (9.8 ft) deep and 10 metres (32.8 ft) wide. Some of the remaining stones are 4.5 metres (14.8 ft) high and it has been estimated that the ditch alone took 80,000 man-hours to construct. The ring stands on a small isthmus
Isthmus
An isthmus is a narrow strip of land connecting two larger land areas usually with waterforms on either side.Canals are often built through isthmuses where they may be particularly advantageous to create a shortcut for marine transportation...

 between the Lochs of Stenness
Loch of Stenness
The Loch of Stenness together with the Loch of Harray are the two largest freshwater lochs of Mainland, Orkney. In Old Norse their names are Steinnesvatn and Heraðvatn...

 and Harray and it is generally thought to have been erected between 2500 BC and 2000 BC.
Excavations by Orkney College
Orkney College
Orkney College is a further and higher education college in Orkney, an archipelago in northern Scotland. It is an academic partner in the University of the Highlands and Islands....

 at the nearby Ness of Brodgar
Ness of Brodgar
Ness of Brodgar is an archaeological site covering excavated from 2003 onwards between the Ring of Brodgar and the Stones of Stenness in the Heart of Neolithic Orkney World Heritage Site near Loch of Harray, Orkney, in Scotland...

 site between the Ring and the Stones of Stenness have revealed several buildings, both ritual and domestic and the works suggest there are likely to be more in the vicinity. One structure appears to be 20 metres (65.6 ft) long by 11 metres (36.1 ft) wide. Pottery, bones, stone tools and polished stone mace heads have also been discovered. Perhaps the most important find is the remains of a large stone wall which may have been 100 metres (328.1 ft) long and 4 metres (13.1 ft) or more wide. It appears to traverse the entire peninsula the site is on and may have been a symbolic barrier between the ritual landscape of the Ring and the mundane world around it.

In 2010 a rock coloured red, orange and yellow was unearthed. Although containers of pigments have been found previously at sites such as Skara Brae, this was the first discovery in Britain, and possibly in Northern Europe, of evidence that Neolithic peoples used paint to decorate their buildings. It is thought that the primitive paint could have been made from iron ore, mixed with animal fat, milk or eggs. Only a week later a stone with a zigzag chevron pattern painted with a red pigment was discovered nearby.

Stones of Stenness

The Stones of Stenness are five remaining megalith
Megalith
A megalith is a large stone that has been used to construct a structure or monument, either alone or together with other stones. Megalithic describes structures made of such large stones, utilizing an interlocking system without the use of mortar or cement.The word 'megalith' comes from the Ancient...

s of a henge, the largest of which is 6 metres (19.7 ft) high. The site is thought to date from 3100 BC, one of the earliest dates for a henge anywhere in Britain. The Stones are part of a landscape that evidently had considerable ritual significance for the "Grooved ware people
Grooved ware people
Most Neolithic cultures in Britain are best identified by the pottery remains which they left. A large number of apparently unrelated cultures seem to have produced urns which have characteristic grooves near the top rim, hence the name grooved ware people....

". The Ring of Brodgar lies about 1.2 kilometre (0.745647283979768 mi) to the north-west, and Maeshowe is a similar distance to the east. Barnhouse is only 150 metres (492.1 ft) to the north.

The existing megalith
Megalith
A megalith is a large stone that has been used to construct a structure or monument, either alone or together with other stones. Megalithic describes structures made of such large stones, utilizing an interlocking system without the use of mortar or cement.The word 'megalith' comes from the Ancient...

s were originally part of an elliptical shaped stone circle of 12 stones, about 32 metres (105 ft) in diameter surrounded by a ditch that was 2 metres (6.6 ft) wide and 7 metres (23 ft) deep and with a single entrance causeway on the north side that faces towards the Barnhouse Settlement. The Watch Stone stands outside the circle to the north-west and is 5.6 metres (18.4 ft) high. Other smaller stones include a square stone like a huge hearth setting in the centre of the circle and this along with the bones of cattle, sheep, wolves and dogs found in the ditch suggest ritual sacrifice and feasting.

Even in the 18th century the site was still associated with traditions and rituals, by then relating to Norse gods. The "Odin
Odin
Odin is a major god in Norse mythology and the ruler of Asgard. Homologous with the Anglo-Saxon "Wōden" and the Old High German "Wotan", the name is descended from Proto-Germanic "*Wodanaz" or "*Wōđanaz"....

 Stone" was pierced with a circular hole, and was used by local couples for plighting engagements by holding hands through the gap. In the early 19th century a local landowner and recent immigrant to Orkney decided to remove the Stones on the grounds that local people were trespassing and disturbing his land in using the stones. He started in December 1814 by smashing the Odin Stone. This caused outrage and he was stopped after destroying one other stone and toppling another. The toppled stone was re-erected in 1906 along with some inaccurate reconstruction inside the circle.

Other Late Neolithic sites

The Isbister Chambered Cairn, popularly known as the "Tomb of the Eagles
Tomb of the Eagles
Located on at cliff edge at Isbister on South Ronaldsay in Orkney, Scotland, the Tomb of the Eagles is a Neolithic chambered tomb. First explored by Ronald Simison in 1958, he conducted his own excavations at the site in 1976...

" is located on the cliffs of South Ronaldsay
South Ronaldsay
South Ronaldsay is one of the Orkney Islands off the north coast of Scotland. It is linked to the Orkney Mainland by the Churchill Barriers, running via Burray, Glimps Holm and Lamb Holm.-Geography and geology:...

. This chambered tomb was in use for 800 years or more from 3150 BC, and has five separate stalls and three side-chambers. 16,000 human bones were found during the excavations, as well as 725 bird bones, predominantly White-tailed Sea Eagle and over 25 kilograms (55.1 lb) of pottery shards.

The Dwarfie Stane
Dwarfie Stane
The Dwarfie Stane is a megalithic chambered tomb carved out of a titanic block of Devonian Old Red Sandstone located in a steep-sided glaciated valley between the settlements of Quoys and Rackwick on Hoy, an island in Orkney, Scotland....

 tomb on the island of Hoy
Hoy
Hoy is an island in Orkney, Scotland. With an area of it is the second largest in the archipelago after the Mainland. It is connected by a causeway called The Ayre to South Walls...

 is made from a single huge block of red sandstone
Sandstone
Sandstone is a sedimentary rock composed mainly of sand-sized minerals or rock grains.Most sandstone is composed of quartz and/or feldspar because these are the most common minerals in the Earth's crust. Like sand, sandstone may be any colour, but the most common colours are tan, brown, yellow,...

 with a hollowed-out central chamber. This style is quite unlike any other Neolithic Orkney site and probably dates from about 2500 BC. It was the first Orcadian ancient monument to be described in writing, appearing in the 16th century Descriptio Insularum Orchadiarum by Joannem Ben who provided the explanation for its existence as having been built and used by giants
Giant (mythology)
The mythology and legends of many different cultures include monsters of human appearance but prodigious size and strength. "Giant" is the English word commonly used for such beings, derived from one of the most famed examples: the gigantes of Greek mythology.In various Indo-European mythologies,...

.

Bronze Age

The Bronze Age in Scotland lasted from approximately 2200 BC to 800 BC and northern Scotland has produced a relative dearth of remains from this period in comparison to the Neolithic and later Iron Age. This may in part be due to deteriorating weather conditions in the second millennium BC. In Orkney, fewer large stone structures were built during this period, burials were now being made in small cists well away from the great megalithic sites and a new Beaker culture began to dominate. Nonetheless the great ceremonial circles continued in use as bronze
Bronze
Bronze is a metal alloy consisting primarily of copper, usually with tin as the main additive. It is hard and brittle, and it was particularly significant in antiquity, so much so that the Bronze Age was named after the metal...

 metalworking was slowly introduced to Scotland from Europe over a lengthy period. There is agreement amongst historians that from about 1000 BC it is legitimate to talk of a Celt
Celt
The Celts were a diverse group of tribal societies in Iron Age and Roman-era Europe who spoke Celtic languages.The earliest archaeological culture commonly accepted as Celtic, or rather Proto-Celtic, was the central European Hallstatt culture , named for the rich grave finds in Hallstatt, Austria....

ic culture in Scotland, although the nature of the Orcadian Celtic civilisation and their relationships to their neighbours remains largely unknown.

In addition to various Mainland sites such as Knowes of Trotty, Kirbuster Hill and the impressive Plumcake Mound near the Ring of Brodgar there are various Bronze Age structures on other islands such as Tofts Ness on Sanday, Warness on Eday, the remains of two houses on Holm of Faray
Holm of Faray
The Holm of Faray is a small island in Orkney, Scotland, near Faray and Westray, which it lies between. Together with its neighbour Faray, it is designated a SSSI due to its importance as a haul-out site and breeding area for grey seals....

, and a burnt mound and farmstead on Auskerry
Auskerry
Auskerry is a small island in eastern Orkney, Scotland. It lies in the North Sea south of Stronsay and has a lighthouse, completed in 1866.-Description:...

.

Early Iron Age

The Iron Age provides numerous substantial building remains. In the 1970s excavations at Quanterness, near the site of the Neolithic chambered tomb, revealed an Atlantic roundhouse
Atlantic roundhouse
In archaeology, an Atlantic roundhouse is an Iron Age stone building found in the northern and western parts of mainland Scotland, the Northern Isles and the Hebrides.-Types of structure:...

. This was built about 700 BC using stone stripped from the older building that had fallen into disuse some two millennia previously.
Numerous similar finds have been made at for example, Bu on the Mainland and Pierowall Quarry on Westray. These are also many impressive broch
Broch
A broch is an Iron Age drystone hollow-walled structure of a type found only in Scotland. Brochs include some of the most sophisticated examples of drystone architecture ever created, and belong to the classification "complex Atlantic Roundhouse" devised by Scottish archaeologists in the 1980s....

 sites. These are substantial stone towers that developed out of the roundhouse tradition in north and west Scotland, whose dry-stone walls may have reached 13 metres (42.7 ft) in height. Although Orkney has no broch towers where the surviving walls are more than a few metres high, several important sites have been excavated which have numerous associated buildings forming a "broch village".

Midhowe broch lies close to the chambered cairn of the same name on Rousay. There appear to have been at least two separate periods of occupation and at some point buttresses were added to the exterior of the wall, suggesting the structure was in need of support. It is one of 11 broch sites on either side of the Eynhallow
Eynhallow
Eynhallow is a small, presently uninhabited island, part of the Orkney Islands, off the north coast of Scotland.-Geography:Eynhallow lies in Eynhallow Sound between Mainland, Orkney and Rousay. It is in area....

 Sound. Burroughston Broch on the island of Shapinsay
Shapinsay
Shapinsay is one of the Orkney Islands off the north coast of mainland Scotland. There is one village on the island, Balfour, from which roll-on/roll-off car ferries sail to Kirkwall on the Orkney Mainland...

 was built in the second half of the first millennium BC and excavated in the mid 19th century. Its earth cladding is intact, allowing visitors to peer down into the broch
Broch
A broch is an Iron Age drystone hollow-walled structure of a type found only in Scotland. Brochs include some of the most sophisticated examples of drystone architecture ever created, and belong to the classification "complex Atlantic Roundhouse" devised by Scottish archaeologists in the 1980s....

 from above. The walls are up to 4 metres (13.1 ft) thick in places and there is a complete chamber off the entrance passage. The remains of stone furniture are evident in the interior.
Mine Howe
Mine Howe
Mine Howe is a prehistoric subterranean man-made chamber dug 20 feet deep inside a large mound. It is located in the Tankerness area of Orkney, about 5 miles southeast of Kirkwall, the capital of Orkney. The origin of the howe is not perfectly understood. Experts believe that it was built roughly...

, located near Tankerness in the parish of St Andrews
St Andrews, Orkney
St Andrews is a parish in Mainland, Orkney. It is located east of the town of Kirkwall and the parish of St Ola and lies north of Holm and west of Deerness...

, is a prehistoric subterranean man-made chamber dug 7 metres (23 ft) deep inside a large mound. Its purpose is not obvious. The walls are lined with stones fitted to form an arch over the cavity and steep steps lead to a rock floor. The entrance is at the top of the small hill and there is a surrounding ditch and evidence of sophisticated metal working around the site. The Rennibister Earth House
Rennibister Earth House
Rennibister Earth House is located on the main island in the Orkney islands. It is located by the south eastern shore of the Bay o' Firth, in a farm yard and is accessed by a hatch in the roof of the earth house and by a ladder...

 is a souterrain
Souterrain
Souterrain is a name given by archaeologists to a type of underground structure associated mainly with the Atlantic Iron Age. These structures appear to have been brought northwards from Gaul during the late Iron Age. Regional names include earth houses, fogous and Pictish houses...

  consisting of an oval chamber with a corbelled roof supported by pillars. Although these structures are usually associated with the storage of food this site is reminiscent of the Neolithic chambered tombs and excavations revealed 18 human skeletons.

Wheelhouses
Wheelhouse (archaeology)
In archaeology, a wheelhouse is a prehistoric structure from the Iron Age found in Scotland. The term was first coined after the discovery of a ruined mound in 1855. The distinctive architectural form related to the complex roundhouses, constitute the main settlement type in the Western Isles, in...

 are stone buildings from the later Iron Age whose characteristic features include an outer wall within which a circle of stone piers (bearing a resemblance to the spokes of a wheel) form the basis for lintel arches supporting corbel
Corbel
In architecture a corbel is a piece of stone jutting out of a wall to carry any superincumbent weight. A piece of timber projecting in the same way was called a "tassel" or a "bragger". The technique of corbelling, where rows of corbels deeply keyed inside a wall support a projecting wall or...

led roofing with a hearth at the hub. Eight presumed sites have been identified in Orkney although the style is different from those of Shetland and the Western Isles. The Orkney sites are four on Sanday, one on Calf of Eday, one at Hillock of Burroughston on Shapinsay and two on the Mainland at Burrian Broch and Broch of Gurness.

The influence of Rome

For a brief period Orkney emerged from prehistory and into protohistory
Protohistory
Protohistory refers to a period between prehistory and history, during which a culture or civilization has not yet developed writing, but other cultures have already noted its existence in their own writings...

. The Greek explorer Pytheas
Pytheas
Pytheas of Massalia or Massilia , was a Greek geographer and explorer from the Greek colony, Massalia . He made a voyage of exploration to northwestern Europe at about 325 BC. He travelled around and visited a considerable part of Great Britain...

 visited Britain sometime between 322 and 285 BC and may have circumnavigated the mainland. In his On the Ocean he refers to the most northerly point as Orcas, conceivably a reference to Orkney.
Remarkably, the earliest written record of a formal connection between Rome
Roman Empire
The Roman Empire was the post-Republican period of the ancient Roman civilization, characterised by an autocratic form of government and large territorial holdings in Europe and around the Mediterranean....

 and Scotland is the attendance of the "King of Orkney" who was one of eleven British kings who submitted to the Emperor Claudius
Claudius
Claudius , was Roman Emperor from 41 to 54. A member of the Julio-Claudian dynasty, he was the son of Drusus and Antonia Minor. He was born at Lugdunum in Gaul and was the first Roman Emperor to be born outside Italy...

 at Colchester
Camulodunum
Camulodunum is the Roman name for the ancient settlement which is today's Colchester, a town in Essex, England. Camulodunum is claimed to be the oldest town in Britain as recorded by the Romans, existing as a Celtic settlement before the Roman conquest, when it became the first Roman town, and...

 in AD 43 following the invasion of southern Britain three months earlier. The long distances and short period of time involved strongly suggest a prior connection between Rome and Orkney, although no evidence of this has been found and the contrast with later Caledonia
Caledonia
Caledonia is the Latinised form and name given by the Romans to the land in today's Scotland north of their province of Britannia, beyond the frontier of their empire...

n resistance to Rome is striking. Pomponius Mela
Pomponius Mela
Pomponius Mela, who wrote around AD 43, was the earliest Roman geographer. He was born in Tingentera and died c. AD 45.His short work occupies less than one hundred pages of ordinary print. It is laconic in style and deficient in method, but of pure Latinity, and occasionally relieved by pleasing...

, the Roman geographer, recorded in his De Chorographia, written c. 43 AD, that there were thirty Orkney islands. There is certainly evidence of an Orcadian connection with Rome prior to AD 60 from pottery found at the Broch of Gurness and 1st and 2nd century Roman coins have been found at Lingro broch.

The Roman presence in Scotland
Scotland during the Roman Empire
Scotland during the Roman Empire encompasses a period of protohistory from the arrival of Roman legions in c. AD 71 to their departure in 213. The history of the period is complex: the Roman empire influenced every part of Scotland during the period, however the occupation was neither complete nor...

 was however little more than a series of relatively brief interludes of partial military occupation. As Roman influence waned in Scotland from 211 onwards, Orkney faded from history again and the Celtic Iron Age way of life continued, largely unchanged.

Pictish rule

In the centuries following Rome's excursions into Scottish territory Orkney was, at least for a time, part of the Pictish
Picts
The Picts were a group of Late Iron Age and Early Mediaeval people living in what is now eastern and northern Scotland. There is an association with the distribution of brochs, place names beginning 'Pit-', for instance Pitlochry, and Pictish stones. They are recorded from before the Roman conquest...

 kingdom. Very little is known about the Pictish Orcadians, the main archaeological relics being symbol stones. One of the best examples is located on the Brough of Birsay
Brough of Birsay
- Lighthouse :An unmanned lighthouse on the Brough was built in 1925 by David A Stevenson.-References:...

; it shows 3 warriors with spears and sword scabbards combined with traditional Pictish symbols. This small tidal island has a long history of settlement that continued into the Norse period.

Adomnan, the biographer of St Columba
Columba
Saint Columba —also known as Colum Cille , Colm Cille , Calum Cille and Kolban or Kolbjørn —was a Gaelic Irish missionary monk who propagated Christianity among the Picts during the Early Medieval Period...

, states that there were Orcadians at the court of the Pictish High King, Bridei
Bridei I of the Picts
Bridei son of Maelchon, was king of the Picts until his death around 584 to 586.Bridei is first mentioned in Irish annals for 558–560, when the Annals of Ulster report "the migration before Máelchú's son i.e. king Bruide". The Ulster annalist does not say who fled, but the later Annals of...

, in AD 565. These Orcadians were described as "hostages" which could imply difficult relations between Orkney and the king, although they may have simply been guests at the court. A Pictish cemetery was found in the grounds of Skaill House (adjacent to Skara Brae) in 1996.

Christianity
Christianity
Christianity is a monotheistic religion based on the life and teachings of Jesus as presented in canonical gospels and other New Testament writings...

 probably arrived in Orkney in the 6th century and organised church authority emerged in the 8th century. The Buckquoy spindle-whorl
Buckquoy spindle-whorl
The Buckquoy spindle-whorl is a famous spindle-whorl dating from the Early Middle Ages, probably the 8th century, excavated in 1970 in Buckquoy, Birsay, Orkney, Scotland. Made of sandy limestone, it is about 36 mm in diameter and 10 mm thick...

 found at a Pictish site on Birsay
Birsay
Birsay is a parish in the north west corner of The Mainland of Orkney, Scotland. Almost all the land in the parish is devoted to agriculture: chiefly grassland used to rear beef cattle...

 is an Ogham
Ogham
Ogham is an Early Medieval alphabet used primarily to write the Old Irish language, and occasionally the Brythonic language. Ogham is sometimes called the "Celtic Tree Alphabet", based on a High Medieval Bríatharogam tradition ascribing names of trees to the individual letters.There are roughly...

–inscribed artefact whose interpretation has caused controversy although it is now generally considered to be of both Irish and Christian in origin. Evidence associated with the St Boniface Church on Papa Westray suggests this island have been the seat of the Christian bishopric of Orkney in Pictish times. The 8th century was also the time the Viking
Viking
The term Viking is customarily used to refer to the Norse explorers, warriors, merchants, and pirates who raided, traded, explored and settled in wide areas of Europe, Asia and the North Atlantic islands from the late 8th to the mid-11th century.These Norsemen used their famed longships to...

 invasions of the Scottish seaboard commenced and with them came the arrival of a new culture and language for the Orkney islands. The Norse era has provided a variety of written records, the substantial Orkneyinga Saga
Orkneyinga saga
The Orkneyinga saga is a historical narrative of the history of the Orkney Islands, from their capture by the Norwegian king in the ninth century onwards until about 1200...

 amongst them and at this point the archipelago fully emerges into the historic era.

Archaeological history

Formal excavations are first recorded at Earl's Knoll on Papa Stronsay
Papa Stronsay
Papa Stronsay is a small island in Orkney, Scotland, lying north east of Stronsay. It is in size, and at its highest point.According to folklore, some of the natives were descended from a female selkie. This was because they had horny skin on their feet and hands, and permanently smelt of...

 in the Statistical Account of Scotland in 1795. As with the Dwarfie Stane, the mound was assumed to be a giant's grave at the time. Following soon after this, work on the "Picts-house" (i.e. chambered tomb) at Quanterness commenced, but little else of note was achieved until the mid 19th century. F. W. L. Thomas, whose day job was as a Captain
Captain (naval)
Captain is the name most often given in English-speaking navies to the rank corresponding to command of the largest ships. The NATO rank code is OF-5, equivalent to an army full colonel....

 in the Royal Navy
Royal Navy
The Royal Navy is the naval warfare service branch of the British Armed Forces. Founded in the 16th century, it is the oldest service branch and is known as the Senior Service...

 published The Celtic Antiquities of Orkney in 1852, which listed various sites and aimed to interest "antiquarians" in the subject. His hopes were met and about a dozen chambered tombs were worked on between 1849 and 1867 by James Farrer, R.J. Hebden and George Petrie. However, other than work at Unstan near Stromness
Stromness
Stromness is the second-biggest town in Orkney, Scotland. It is in the south-west of Mainland Orkney. It is also a parish, with the town of Stromness as its capital.-Etymology:...

 there was then a lull for about six decades. Then, from the late 1920s, work recommenced with the assistance of the Royal Commission on the Ancient and Historical Monuments of Scotland
Royal Commission on the Ancient and Historical Monuments of Scotland
The Royal Commission on the Ancient and Historical Monuments of Scotland is an executive non-departmental public body of the Scottish Government 'sponsored' [financed and with oversight] through Historic Scotland, an executive agency of the Scottish Government...

 and the Ministry of Works. The most eminent archaeologist to work here at this time was Vere Gordon Childe
Vere Gordon Childe
Vere Gordon Childe , better known as V. Gordon Childe, was an Australian archaeologist and philologist who specialised in the study of European prehistory. A vocal socialist, Childe accepted the socio-economic theory of Marxism and was an early proponent of Marxist archaeology...

. He was involved in excavations at Skara Brae and Rinyo, but it was only when a shard of pottery was discovered at the latter site that it became understood that these settlements dated to the Neolithic rather than the Iron Age. A further 18 tombs were excavated before 1950, including five on Eday
Eday
Eday is one of the Orkney Islands, which are located to the north of the Scottish mainland in the United Kingdom. Eday is located in the North Isles of Orkney, and is about north of the main island of Orkney Mainland...

 and one on the Calf of Eday
Calf of Eday
The Calf of Eday is an island in Orkney, Scotland, lying north east of Eday."Calf" is a name usually given to a small island alongside a larger one, e.g...

 and by the 1960s the outlines of a modern understanding of Orcadian prehistory had emerged. The advent of radiocarbon dating
Radiocarbon dating
Radiocarbon dating is a radiometric dating method that uses the naturally occurring radioisotope carbon-14 to estimate the age of carbon-bearing materials up to about 58,000 to 62,000 years. Raw, i.e. uncalibrated, radiocarbon ages are usually reported in radiocarbon years "Before Present" ,...

 enabled even more detailed dates to be established and refuted earlier theories that the chambered tombs of Orkney had developed from similar structures found in the Eastern Mediterranean, such as those built by the Minoans, when it became clear that the former pre-dated the latter by a considerable margin.

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