70-494: A dun is an ancient or medieval fort. In Great Britain and Ireland it is mainly a kind of hillfort and also a kind of Atlantic roundhouse . The term comes from Irish dún or Scottish Gaelic dùn (meaning "fort"), and is cognate with Old Welsh din (whence Welsh dinas "city" comes). In certain instances, place-names containing Dun- or similar in Northern England and Southern Scotland , may be derived from
140-710: A Brittonic cognate of the Welsh form din . In this region, substitution of the Brittonic form by the Gaelic equivalent may have been widespread in toponyms. The Dacian dava (hill fort) is probably etymologically cognate. In some areas duns were built on any suitable crag or hillock, particularly south of the Firth of Clyde and the Firth of Forth . There are many duns on the west coast of Ireland and they feature in Irish mythology . For example,
210-486: A castro is a fortified pre- Roman Iron Age village, usually located on a hill or some naturally easy defendable place. The larger hillforts are also called citanias , cividades or cidás (English: cities ). They were located on hilltops, which allowed tactical control over the surrounding countryside and provided natural defences. They usually had access to a spring or small creek to provide water; some even had large reservoirs to use during sieges . Typically,
280-453: A castro had one to five stone and earth walls, which complemented the natural defences of the hill. The buildings inside, most of them circular in shape, some rectangular, were about 3.5–15 m (11–49 ft) long; they were made out of stone with thatch roofs resting on a wood column in the centre of the building. In the major oppida there were regular streets, suggesting some form of central organization. Castros vary in area from less than
350-447: A common list of castles, fortresses, forts, an hillforts. The Latvian word for hillfort is pilskalns (plural: pilskalni ), from pils (castle) and kalns (hill). Hillforts in Latvia offered not only military and administrative functions but they were also cultural and economic centres of some regions. Latvian hillforts generally were a part of a complex consisting of
420-889: A hectare to some 50 hectare ones, and most were abandoned after the Roman conquest of the territory. Many castros were already established during the Atlantic Bronze Age period, pre-dating the Hallstatt culture . Many of the megaliths from the Bronze Age such as menhirs and dolmens , which are frequently located near the castros, also pre-date the Celts in Portugal, Asturias and Galicia as well as in Atlantic France, Britain and Ireland. These megaliths were probably reused in syncretic rituals by
490-498: A military reaction to social tensions caused by an increasing population and consequent pressure on agriculture. The dominant view, since the 1960s, has been that the increasing use of iron led to social changes in Britain. Deposits of iron ore were located in different places to the tin and copper ore necessary to make bronze and, as a result, trading patterns shifted and the old elites lost their economic and social status. Power passed into
560-449: A range of purposes and were variously tribal centres, defended places, foci of ritual activity, and places of production. Hillforts were frequently occupied by conquering armies, but on other occasions the forts were destroyed, the local people forcibly evicted, and the forts left derelict. For example, Solsbury Hill was sacked and deserted during the Belgic invasions of southern Britain in
630-917: A refuge against attacking enemies. Ijang were first described by the English freebooter Captain William Dampier when he visited the island of Ivuhos in 1687. During the Spanish colonial era , ijang were abandoned during the Reducciones as the Ivatan population were moved into centralized towns in the lowlands. Among the Māori people , villages called pā were often built on raised ground, like volcanic hills, headlands, and small islands (including artificial islands ). The slopes were terraced into defensive ramparts that were usually further protected by palisades . Traditional pā took
700-407: A role in displaying the power and wealth of the local inhabitants and as a line of demarcation between the town and the countryside. According to Jane McIntosh, the "impressive ramparts with elaborate gateways ... were probably as much for show and for controlling the movement of people and goods as for defense". Some of the oppida fortifications were built on an immense scale. Construction of
770-465: A settlement to be called an oppidum , the main requirements emerge. They were important economic sites, places where goods were produced, stored and traded, and sometimes Roman merchants had settled and the Roman legions could obtain supplies. They were also political centres, the seat of authorities who made decisions that affected large numbers of people, such as the appointment of Vercingetorix as head of
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#1732851358719840-473: A stone wall or earthen rampart or both. These would have been important tribal centres where the chief or king of the area would live with his extended family and support themselves by farming and renting cattle to their underlings. There are around 40 known hillforts in Ireland. About 12 are multivallate as distinguished by multiple ramparts, or a large counterscarp (outer bank). The imposing example at Mooghaun
910-473: A variety of designs, ranging from a simple terraced hill, to complex fortified structures that include multiple rows of palisades and underground defensive and ambush points. Māori pā differed from European hillforts in that they also prominently incorporate food storage pits and often, water sources. They survived until the colonial era and later types of pā were designed specifically for fighting with guns. Oppida An oppidum ( pl. : oppida )
980-905: Is linnamägi (plural linnamäed ), meaning hillfort or hillburgh . There are several hundred hillforts or presumed ancient hillfort sites all over Estonia. Some of them, like Toompea in Tallinn or Toomemägi in Tartu, are governance centres used since ancient times up until today. Some others, like Varbola are historical sites nowadays. Most likely the Estonian hillforts were in pre-Christian times administrative, economic and military centres of Estonian tribes . Although some of them were probably used only during times of crisis and stood empty in peacetime (for example Soontagana in Koonga parish, Pärnu county ). List of Estonian fortresses [ et ] contains
1050-662: Is a large fortified Iron Age settlement or town. Oppida are primarily associated with the Celtic late La Tène culture , emerging during the 2nd and 1st centuries BC, spread across Europe, stretching from Britain and Iberia in the west to the edge of the Hungarian Plain in the east. These settlements continued to be used until the Romans conquered Southern and Western Europe. Many subsequently became Roman-era towns and cities, whilst others were abandoned. In regions north of
1120-446: Is a type of fortified refuge or defended settlement located to exploit a rise in elevation for defensive advantage. They are typical of the late European Bronze Age and Iron Age . Some were used in the post- Roman period. The fortification usually follows the contours of a hill and consists of one or more lines of earthworks or stone ramparts , with stockades or defensive walls , and external ditches. If enemies were approaching,
1190-424: Is also reflected in the archaeological evidence. According to Fichtl (2018), in the first century BC Gaul was divided into around sixty civitates (the term used by Caesar) or 'autonomous city-states', which were mostly organized around one or more oppida . In some cases, "one of these can be regarded effectively as a capital." Oppida continued in use until the Romans began conquering Iron Age Europe. Even in
1260-624: Is also used more widely to characterize any fortified prehistoric settlement. For example, significantly older hill-top structures like the one at Glauberg (6th or 5th century BC) have been called oppida . Such wider use of the term is, for example, common in the Iberian archaeology; in the descriptions of the Castro culture it is commonly used to refer to the settlements going back to the 9th century BC. The Spanish word castro , also used in English, means 'a walled settlement' or 'hill fort', and this word
1330-402: Is defended by multiple stone walls. One must be careful to not confuse a hill-fort with a ' ringfort '—a medieval settlement—a common archaeological feature across the whole island of Ireland, of which over 40,000 examples are known; one source claims there may be 10,000 undiscovered ringforts. In Galicia , Asturias , Cantabria , Basque Country , province of Ávila and Northern Portugal
1400-453: Is flexible and fortified sites as small as 2 hectares (4.9 acres) have been described as oppida . However, the term is not always rigorously used, and it has been used to refer to any hill fort or circular rampart dating from the La Tène period. One of the effects of the inconsistency in definitions is that it is uncertain how many oppida were built. In European archaeology, the term oppida
1470-607: Is often used interchangeably with oppidum by archaeologists. What was swept away in Northern Europe by the Roman Conquest was itself a dynamic indigenous culture extending across the transalpine landmass, usually known today as that of the Celts. The proto-urban Oppida – a Latin word used by Julius Caesar himself – remain one of the most striking manifestations of this pre-Roman northern European civilization. According to pre-historian John Collis , oppida extend as far east as
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#17328513587191540-478: Is the largest amongst forts reoccupied following the end of Roman rule , to defend against pirate raids, and the Anglo-Saxon invasions. The cemetery outside Poundbury Hill contains east-facing Christian burials of the 4th century CE. In Wales, the hillfort at Dinas Powys was a late Iron Age hillfort reoccupied from the 5th-6th centuries CE; similarly at Castell Dinas Brân a hillfort of c. 600 BCE
1610-477: The insulae of Roman cities (Variscourt). Little is known, however, about the purpose of any public buildings. The main features of the oppida are the walls and gates, the spacious layout, and usually a commanding view of the surrounding area. The major difference with earlier structures was their much larger size. Earlier hill forts were mostly just a few hectares in area, whilst oppida could encompass several dozen or even hundreds of hectares. They also played
1680-606: The Bronze Age in the 1st millennium BC. The earliest examples in present-day Lithuania are found in the east of the country. Most of these forts were built or expanded between the fifth and fifteenth centuries, when they were used in the Dukes' Wars, and against the invasion of Teutonic Knights from the west. Most forts were located on the banks of a river, or a confluence where two rivers met. These fortifications were typically wooden, although some had additional stone or brick walls. The hill
1750-674: The Hill Forts of Rajasthan . In the Philippines , the Ivatan people of the Batanes Islands built ijang —fortified villages on top of natural hills and raised landforms near the coastlines. These were terraced into defensive ramparts with limited access points. Artifacts recovered from an ijang on the town of Savidug in Sabtang has been dated to around 1200 CE. These high rocky formations served as
1820-504: The Hungarian plain where other settlement types take over. Around 200 oppida are known today. Central Spain has sites similar to oppida, but while they share features such as size and defensive ramparts the interior was arranged differently. Oppida feature a wide variety of internal structures, from continuous rows of dwellings ( Bibracte ) to more widely spaced individual estates ( Manching ). Some oppida had internal layouts resembling
1890-1040: The Middle Ages . Duns are similar to brochs , but are smaller and probably would not have been capable of supporting a very tall structure. Good examples of this kind of dun can be found in the Outer Hebrides of Scotland , on artificial islands in small lakes. The word dun is, along with like-sounding cognate forms, an element frequently found in Celtic toponymy; especially that of Ireland and Scotland. It can include fortifications of all sizes and kinds: Many settlement and geographical names in Scotland are named with Gaelic dun ("fort"), as well as cognates in Brittonic languages such as Cumbric and Pictish . Some place-names in England are derived from Brittonic cognates of Welsh din (c.f. Cornish dyn , Cumbric *din ), and fewer perhaps from
1960-874: The Neman River (against the Teutonic Order) and another along the border with Livonia . Two other lines started to form, but did not fully develop. One was to protect Vilnius , the capital, and the other line in Samogitia , was a major target for both orders. This territory separated the two Orders and prevented joint action between them and Pagan Lithuania. As of 2017 , according to the Atlas of Lithuanian Hillforts , there were 921 objects in Lithuania identified as piliakalniai . Most piliakalniai are located near rivers and are endangered by erosion: many have partly collapsed as
2030-689: The Proto-Indo-European * pedóm- , 'occupied space' or 'footprint'. In modern archaeological usage oppidum is a conventional term for large fortified settlements associated with the Celtic La Tène culture . In his Commentarii de Bello Gallico , Julius Caesar described the larger Celtic Iron Age settlements he encountered in Gaul during the Gallic Wars in 58 to 52 BC as oppida . Although he did not explicitly define what features qualified
2100-693: The Trinovantes and at times the Catuvellauni , made use of natural defences enhanced with earthworks to protect itself. The site was protected by two rivers on three of its sides, with the River Colne bounding the site to the north and east, and the Roman River forming the southern boundary; the extensive bank and ditch earthworks topped with palisades were constructed to close off the open western gap between these two river valleys. These earthworks are considered
2170-588: The 1st century BC. Abandoned forts were sometimes reoccupied and refortified under renewed threat of foreign invasion, such as the Dukes' Wars in Lithuania , and the successive invasions of Britain by Romans , Saxons and Vikings . Celtic hillforts developed in the Late Bronze and Early Iron Age, roughly the start of the first millennium BC , and were used in many Celtic areas of central and western Europe until
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2240-479: The 5th–8th centuries AD, when many new hillforts appeared, in most cases, along the main trades routes—rivers. During the 10th–11th centuries, some of the hillforts became military fortresses with strong fortifications (like hillforts in Tērvete , Talsi , Mežotne ). Some of them are considered important political centres of the local peoples, who in this period were subjects of serious social political changes. That period
2310-666: The 7km-long murus gallicus at Manching required an estimated 6,900 m of stones for the façade alone, up to 7.5 tons of iron nails, 90,000 m of earth and stones for the fill between the posts and 100,000 m of earth for the ramp. In terms of labour, some 2,000 people would have been needed for 250 days. The 5.5km-long murus gallicus of Bibracte may have required 40 to 60 hectares of mature oak woodland to be clear-felled for its construction. However, size and construction of oppida varied considerably. Typically oppida in Bohemia and Bavaria were much larger than those found in
2380-533: The Celtic Druids . The Celtiberian people occupied an inland region in central northern Spain, straddling the upper valleys of the Ebro , Douro and Tajo . They built hillforts, fortified hilltop towns and oppida , including Numantia . During the period of Late Antiquity or Migration Period a large number of hilltop settlements were established both on the Roman imperial territory and on Germanic soil. However,
2450-704: The Finnish hillforts that while most of them are located these days within some distance from the sea, but earlier many of the forts were located by the sea, due to post-glacial rebound . Finland has around 100 hillforts verified by excavations, and about 200 more suspected sites. The largest hillfort in Finland is the Rapola Castle , other notable are the Old Castle of Lieto and the Sulkava hillfort. The Estonian word for hillfort
2520-515: The Gaelic form. Roman-era toponyms ending in -dunum may represent an ancient Brittonic *duno . London has been etymologised as Brittonic *lin- + dun- ("lake fort"). Coates has rejected such an etymology as "incompatible with early forms". The Proto-Celtic form is *Dūno- , yielding Greek δοῦνον. It is ultimately cognate to English town . The Gaulish term survives in many toponyms in France and Switzerland: Hillfort A hillfort
2590-564: The Gallic revolt in 52 BC. Caesar named 28 oppida . By 2011, only 21 of these had been positively identified by historians and archaeologists: either there was a traceable similarity between the Latin and the modern name of the locality (e.g. Civitas Aurelianorum - Orléans ), or excavations had provided the necessary evidence (e.g. Alesia ). Most of the places that Caesar called oppida were city-sized fortified settlements. However, Geneva , for example,
2660-551: The Iron Age were small, with perhaps no more than 50 inhabitants. Hillforts were the exception, and were the home of up to 1,000 people. With the emergence of oppida in the Late Iron Age, settlements could reach as large as 10,000 inhabitants. As the population increased so did the complexity of prehistoric societies. Around 1100 BC hillforts emerged and in the following centuries spread through Europe. They served
2730-440: The Iron Age were sometimes used for corralling animals in later periods. For example, see Coney's Castle , Dolebury Warren and Pilsdon Pen . However, it is difficult to prove that people definitely did not dwell there, as lack of evidence is not proof of absence. Bronze Age and Iron Age hillforts are widely found in Ireland. They are large circular structures between 1 and 40 acres (most commonly 5–10 acres) in size, enclosed by
2800-443: The Iron Age which may have had several functions. They are usually located on the crests of hills and mountains making use of precipices and marshes which worked as natural defences. The crests' more accessible parts were defended with walls of stone and outer walls in the slopes beneath are common. Round and closed, so-called ring forts are common even on flat ground. The walls often have remaining parts of stone, which were probably
2870-552: The Roman conquest. They are most common during later periods: The Hallstatt culture and La Tène culture originated in what is now southern Germany, Switzerland, Austria, Slovakia and the Czech Republic. The predominant form of rampart construction was pfostenschlitzmauer , or Kelheim-style . During the Hallstatt ;C period, hillforts became the dominant settlement type in the west of Hungary. Julius Caesar described
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2940-509: The civilians would spot them from a distance. Prehistoric Europe saw a growing population. It has been estimated that in about 5000 BC during the Neolithic between 2 million and 5 million lived in Europe; in the Late Iron Age it had an estimated population of around 15 to 30 million. Outside Greece and Italy , which were more densely populated, the vast majority of settlements in
3010-434: The earth and stone ramparts, called Pfostenschlitzmauer (post slot wall) or " Preist -type wall". In western Europe, especially Gaul, the murus gallicus (a timber frame nailed together, with a stone facade and earth/stone fill), was the dominant form of rampart construction. Dump ramparts, that is earth unsupported by timber, were common in Britain and were later adopted in France. They have been found in particular in
3080-701: The element sten / stein were usually hillforts. In Sweden, there are 1,100 known hillforts with a strong concentration on the northern west coast and in eastern Svealand . In Södermanland there are 300, in Uppland 150, Östergötland 130, and 90 to 100 in each of Bohuslän and Gotland . Norway has about 400 hillforts. Denmark has 26 hillforts. The Finnish word for hillfort is linnavuori (plural linnavuoret ), meaning fort hill or castle hill , or alternatively muinaislinna meaning ancient fort , as opposed to bare linna which refers to medieval or later fortifications. One special feature about
3150-583: The excavator to implicate the Cadbury population in a revolt in the 70's AD (roughly contemporary with that of Boudicca in the East of England), although this has been questioned by subsequent researchers. However, the presence of barracks on the hilltop in the decades following the conquest suggest an ongoing struggle to suppress local dissent. Maiden Castle in Dorset is the largest hillfort in England. Where Roman influence
3220-400: The flooded river has washed out the base of the hill. Now around 80 percent of piliakalniai are covered by forests and are hardly accessible to visitors. In Russia , Belarus and Poland Iron Age and Early Medieval hillforts are called gords . They were the residence of local rulers, and provided for refuge in times of war. Similar structures can be found elsewhere in the world, such as
3290-511: The hands of a new group of people. Archaeologist Barry Cunliffe believes that population increase still played a role and has stated "[the forts] provided defensive possibilities for the community at those times when the stress [of an increasing population] burst out into open warfare. But I wouldn't see them as having been built because there was a state of war. They would be functional as defensive strongholds when there were tensions and undoubtedly some of them were attacked and destroyed, but this
3360-461: The large late Iron Age hillforts he encountered during his campaigns in Gaul as oppida . By this time the larger ones had become more like cities than fortresses and many were assimilated as Roman towns. The reason for the emergence of hillforts in Britain, and their purpose, has been a subject of debate. It has been argued that they could have been military sites constructed in response to invasion from continental Europe, sites built by invaders, or
3430-582: The main fortress, the settlement around it, one or more burial fields and nearby ritual sites. The first hillforts in Latvia, such as Daugmale hillfort, appeared during the Bronze Age . Some were continuously inhabited until the late Iron Age . During the Roman Iron Age, some of the Latvian hillforts (like Ķivutkalns ) were abandoned or became sparsely populated. A new period in hillfort development started during
3500-626: The most extensive of their kind in Britain, and together with the two rivers enclosed the high status farmsteads, burial grounds, religious sites, industrial areas, river port and coin mint of the Trinovantes. Prehistoric Europe saw a growing population. According to Jane McIntosh, in about 5,000 BC during the Neolithic between 2 million and 5 million people lived in Europe; in the late (pre-Roman) Iron Age (2nd and 1st centuries BC) it had an estimated population of around 15 to 30 million. Outside Greece and Italy, which were more densely populated,
3570-429: The north and west of France. Typically oppida in Britain are small, but there is a group of large oppida in the south east; though oppida are uncommon in northern Britain, Stanwick stands out as an unusual example as it covers 350 hectares (860 acres). Dry stone walls supported by a bank of earth, called Kelheim ramparts, were characteristic of oppida in central Europe. To the east, timbers were often used to support
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#17328513587193640-475: The north-west and central regions of France and were combined with wide moats ("Type Fécamp"). Oppida can be divided into two broad groups, those around the Mediterranean coast and those further inland. The latter group were larger, more varied, and spaced further apart. In Britain the oppidum of Camulodunon (modern Colchester , built between the 1st century BC and the 1st century AD), tribal capital of
3710-526: The presence of fortifications, so they are different from undefended farms or settlements, and urban characteristics, marking them as separate from hill forts . They are often described as 'the first cities north of the Alps', though earlier examples of urbanism in temperate Europe are also known. The 2nd and 1st centuries BC places them in the period known as La Tène . A notional minimum size of 15 to 25 hectares (37 to 62 acres) has often been suggested, but that
3780-453: The rivers Danube and Rhine , such as most of Germania , where the populations remained independent from Rome, oppida continued to be used into the 1st century AD. Oppidum is a Latin word meaning 'defended (fortified) administrative centre or town', originally used in reference to non-Roman towns as well as provincial towns under Roman control. The word is derived from the earlier Latin ob-pedum , 'enclosed space', possibly from
3850-455: The settlement to dominate nearby trade routes and may also have been important as a symbol of control of the area. For instance at the oppidum of Ulaca in Spain the height of the ramparts is not uniform: those overlooking the valley are considerably higher than those facing towards the mountains in the area. The traditional explanation is that the smaller ramparts were unfinished because the region
3920-489: The support of pales. They often have well delineated gateways, the gates of which were probably of wood. Hillforts with strong walls are often located beside old trade routes and have an offensive character, whereas others are reclusive and were weakly fortified, probably only for hiding during raids. Many forts, located centrally in densely populated areas, were permanently settled strongholds and can show traces of settlements both inside and outside. Older place names containing
3990-533: The tale of the Táin Bó Flidhais features Dún Chiortáin and Dún Chaocháin . Duns seem to have arrived with the Celts in about the 7th century BC. Early duns had near vertical ramparts made of stone and timber. There were two walls, an inner wall and the outside one. Vitrified forts are the remains of duns that have been set on fire and where stones have been partly melted. Use of duns continued in some parts into
4060-683: The term embraces a wide range of very different settlements in high locations. At least a few of the Germanic settlements were protected by fortifications. Unlike the Romans, however, the Germanii did not use mortar at that time for their construction. Among the best known hill settlements in Germany are the Runder Berg near Bad Urach and the Gelbe Bürg near Dittenheim. In Sweden, hillforts are fortifications from
4130-407: The vast majority of settlements in the Iron Age were small, with perhaps no more than 50 inhabitants. While hill forts could accommodate up to 1,000 people, oppida in the late Iron Age could reach as large as 10,000 inhabitants. Oppida originated in the 2nd and 1st centuries BC. Most were built on fresh sites, usually on an elevated position. Such a location would have allowed
4200-408: The word for both fortified and unfortified settlements. In his work Geographia , Ptolemy listed the coordinates of many Celtic settlements. However, research has shown many of the localisations of Ptolemy to be erroneous, making the identification of any modern location with the names he listed highly uncertain and speculative. An exception to that is the oppidum of Brenodurum at Bern , which
4270-464: Was a milestone in the urbanisation of the continent as they were among the first large settlements north of the Alps that could genuinely be described as towns or cities (earlier sites include the 'Princely Seats' of the Hallstatt period ). Caesar pointed out that each tribe of Gaul would have several oppida but that they were not all of equal importance, implying a form of settlement hierarchy , with some oppida serving as regional capitals. This
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#17328513587194340-812: Was a new linear earthwork connected to the existing hillfort at Maes Knoll , which defined the Celtic-Saxon border in south-west England during the period 577–652 CE. Some hillforts were re-occupied by the Anglo-Saxons during the period of Viking raids. King Alfred established a network of coastal hillforts and lookout posts in Wessex , linked by a Herepath , or military road, which enabled his armies to cover Viking movements at sea. For example, see Daw's Castle and Battle of Cynwit . It has been suggested on reasonable evidence that many so-called hillforts were just used to pen in cattle, horses, or other domesticated animals. The large sprawling examples at Bindon Hill and Bathampton Down are more than 50 acres (20 ha ). Even those that were defensive settlements in
4410-436: Was confirmed by an archaeological discovery. In archaeology and prehistory, the term oppida now refers to a category of settlement; it was first used in that sense by Paul Reinecke , Joseph Déchelette and Wolfgang Dehn [ de ] in reference to Bibracte , Manching , and Závist . In particular, Dehn suggested defining an oppidum by four criteria: In current usage, most definitions of oppida emphasise
4480-496: Was invaded by the Romans; however, archaeologist John Collis dismisses this explanation because the inhabitants managed to build a second rampart extending the site by 20 hectares (49 acres) to cover an area of 80 hectares (200 acres). Instead he believes the role of the ramparts as a status symbol may have been more important than their defensive qualities. While some oppida grew from hill forts, by no means all of them had significant defensive functions. The development of oppida
4550-499: Was known for unrest and military activities, as well as power struggles between local aristocracy. Most of the Latvian hillforts were destroyed or abandoned during the Livonian Crusade in the 13th century, but some were still used in the 14th century. In total, there are about 470 hillforts in Latvia. The Lithuanian word for hillfort is piliakalnis (plural piliakalniai ), from pilis (=castle) and kalnas (=mountain, hill). Lithuania has hillforts dating from
4620-398: Was less strong, such as uninvaded Ireland and unsubdued northern Scotland, hillforts were still built and used for several more centuries. There are over 2,000 Iron Age hillforts known in Britain of which nearly 600 are in Wales. Danebury in Hampshire , is the most thoroughly investigated Iron Age hillfort in Britain, as well as the most extensively published. Cadbury Castle, Somerset
4690-535: Was not the only, or even the most significant, factor in their construction". Hillforts in Britain are known from the Bronze Age , but the great period of hillfort construction was during the Celtic Iron Age, between 700 BC and the Roman conquest of Britain in 43 AD. The Romans occupied some forts, such as the military garrison at Hod Hill , and the temple at Brean Down , but others were destroyed and abandoned. Partially articulated remains of between 28 and 40 men, women and children at Cadbury Castle were thought by
4760-431: Was referred to as an oppidum , but no fortifications dating to this period have yet been discovered there. Caesar also refers to 20 oppida of the Bituriges and 12 of the Helvetii , twice the number of fortified settlements of these groups known today. That implies that Caesar likely counted some unfortified settlements as oppida . A similar ambiguity is in evidence in writing by the Roman historian Livy , who also used
4830-443: Was reused in the Middle Ages, with a stone castle built there in the 13th century CE. Some Iron Age hillforts were also incorporated into medieval frontier earthworks. For example Offa's Dyke , a linear earthwork generally dated to the 9th century CE, makes use of the west and south-west ramparts of Llanymynech hillfort. Similarly the hillfort at Old Oswestry was incorporated into the early medieval Wat's Dyke . The Wansdyke
4900-439: Was usually sculpted for defensive purposes, with the top flattened and the natural slopes made steeper for defence. During the early years of Grand Duchy of Lithuania piliakalniai played a major role in conflicts with the Livonian Order and the Teutonic Knights . During this period the number of piliakalniai in use decreased, but those that remained had stronger fortifications. Two main defence lines developed: one along
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