A fortification (also called a fort , fortress , fastness , or stronghold ) is a military construction designed for the defense of territories in warfare , and is used to establish rule in a region during peacetime . The term is derived from Latin fortis ("strong") and facere ("to make").
172-689: Ringforts or ring forts are small circular fortified settlements built during the Bronze Age , Iron Age and early Middle Ages up to about the year 1000 AD. They are found in Northern Europe , especially in Ireland . There are also many in South Wales and in Cornwall , where they are called rounds . Ringforts come in many sizes and may be made of stone or earth. Earthen ringforts would have been marked by
344-478: 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
516-622: A circular rampart (a bank and ditch), often with a stakewall . Both stone and earthen ringforts would generally have had at least one building inside. In Irish language sources they are known by a number of names: ráth (anglicised rath , also Welsh rath ), lios (anglicised lis ; cognate with Cornish lis ), caiseal (anglicised cashel ), cathair (anglicised caher or cahir ; cognate with Welsh caer , Cornish and Breton ker ) and dún (anglicised dun or doon ; cognate with Welsh and Cornish din ). The ráth and lios
688-430: A ravelin like angular gun platform screening one of the curtain walls which is protected from flanking fire from the towers of the main part of the fort. Another example is the fortifications of Rhodes which were frozen in 1522 so that Rhodes is the only European walled town that still shows the transition between the classical medieval fortification and the modern ones. A manual about the construction of fortification
860-470: A circle as a shape "offered broad perspectives of approaching attackers and allowed the maximum area to be enclosed relative to the length of the bank constructed." While defence may be expanded as the modern day explanation for the surrounding banks of a ringfort, this was not the contemporary explanation, rather the explanations forthcoming from the Early Christian texts stress the importance and role of
1032-573: A decline of trade, a small rise in average temperatures in the North Atlantic region and increased migration . In the 19th century the Early Middle Ages were often labelled the Dark Ages , a characterization based on the relative scarcity of literary and cultural output from this time. The term is rarely used by academics today. The Eastern Roman Empire, or Byzantine Empire , survived, though in
1204-512: A double wall of trenches and ramparts, and in the Congo forests concealed ditches and paths, along with the main works, often bristled with rows of sharpened stakes. Inner defenses were laid out to blunt an enemy penetration with a maze of defensive walls allowing for entrapment and crossfire on opposing forces. A military tactic of the Ashanti was to create powerful log stockades at key points. This
1376-513: A gateway centre for similar high status goods into the local economy. Both Garannes, and especially Garryduff II, highlight the other roles that ringforts may have had in early Christian Ireland. While it would seem that most ringforts fitted the traditional explanation as farmsteads, that should not be used as a blanket explanation. A number of other functions for many of the surviving ringforts, such as those outlined above and possibly other settlement functions, still need to be considered. A ringfort
1548-751: A lasting Norse heritage in northernmost Scotland, and it led to the combination of the Picts and Gaels under the House of Alpin , which became the Kingdom of Alba , the predecessor of the Kingdom of Scotland . The Vikings combined with the Gaels of the Hebrides to become the Gall-Gaidel and establish the Kingdom of the Isles . The Merovingians established themselves in the power vacuum of
1720-488: A more diverse and significant role in the economy. A good example of this is provided by the large, tri-vallate ringfort in Garannes, County Cork, which offers no evidence for habitation or settlement but provides a great deal of evidence to suggest that the site had an industrial nature. Furthermore, the finds of continental pottery at the site, suggests that the site was trading with the continent and/or may have been acting as
1892-417: A mouldboard, or curved metal ploughshare, and a coulter, a vertical blade in front of the ploughshare. The Romans had used light, wheel-less ploughs with flat iron shares that often proved unequal to the heavy soils of northern Europe. The return to systemic agriculture coincided with the introduction of a new social system called feudalism . This system featured a hierarchy of reciprocal obligations. Each man
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#17330923765252064-413: A necessity for many cities. Amnya Fort in western Siberia has been described by archaeologists as one of the oldest known fortified settlements, as well as the northernmost Stone Age fort. In Bulgaria, near the town of Provadia a walled fortified settlement today called Solnitsata starting from 4700 BC had a diameter of about 300 feet (91 m), was home to 350 people living in two-storey houses, and
2236-591: A night with a herd of cattle brought inside the ringfort. Furthermore, little effort would appear to have been expended on the upkeep of ditches and fosses to prevent decay and silting. Another key difficulty with viewing the ringfort primarily as a defensive unit is the general lack of ability to fight out from the ringforts, from the top of the banks. The materials used to construct ringforts frequently disintegrated over time. Tradition associated their circular remains with fairies and leprechauns , and they were called “ fairy forts " . Castle Pencaire on Tregonning Hill
2408-608: A period of Frankish rule was initiated. The Frankish king Pepin the Short had, by the Donation of Pepin , given the pope the " Papal States " and the territory north of that swath of papally-governed land was ruled primarily by Lombard and Frankish vassals of the Holy Roman Emperor until the rise of the city-states in the 11th and 12th centuries. In the south, a period of chaos began. The Duchy of Benevento maintained its sovereignty in
2580-560: 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 (2005), "archaeologists are agreed that the vast bulk of them are the farm enclosures of the well-to-do of early medieval Ireland". The theories that the ringfort either pre- or post-dates the Early Middle Ages in Ireland, are both based on essentially
2752-579: A result, very very few kotas still stand to this day. Notable kotas: During Muhammad 's era in Arabia, many tribes made use of fortifications. In the Battle of the Trench , the largely outnumbered defenders of Medina, mainly Muslims led by Islamic prophet Muhammad, dug a trench , which together with Medina's natural fortifications, rendered the confederate cavalry (consisting of horses and camels ) useless, locking
2924-466: A retreat of agriculture centred around 500. The Romans had practiced two-field agriculture , with a crop grown in one field and the other left fallow and ploughed under to eliminate weeds. Systematic agriculture largely disappeared and yields declined. It is estimated that the Plague of Justinian which began in 541 and recurred periodically for 150 years thereafter killed as many as 100 million people across
3096-471: A series of straight lines creating the central fortified area that gives this style of fortification its name. Early Middle Ages The Early Middle Ages (or early medieval period ), sometimes controversially referred to as the Dark Ages , is typically regarded by historians as lasting from the late 5th to the 10th century. They marked the start of the Middle Ages of European history , following
3268-639: A unified cultural and educational milieu of far-ranging connections. As this was lost, it was replaced by the rule of local potentates, sometimes members of the established Romanized ruling elite, sometimes new lords of alien culture. In Aquitania , Gallia Narbonensis , southern Italy and Sicily, Baetica or southern Spain , and the Iberian Mediterranean coast, Roman culture lasted until the 6th or 7th centuries. The gradual breakdown and transformation of economic and social linkages and infrastructure resulted in increasingly localized outlooks. This breakdown
3440-475: 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
3612-415: 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. 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
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#17330923765253784-408: Is a defensive feature that would appear to be obvious both from the name with the defensive implications that fort implies, and also from the generally understood morphological definition of the ringfort, with the banks and fosse been commonly seen as defensive. Indeed, in S. Ó Ríordáin's common morphological definition, he refers to the banks and fosses of the ringfort as defences. One presumes that
3956-408: Is a king, when ramparts of vassalage surround him. What is the rampart of vassalage? Twelve feet are the breadth of its opening and its depth and its measure towards the stockade. Thirty feet are its measure outwardly. As can be seen from the above text, the relationship between the banks of a ringfort and vassalage is quite clear. With the argument being that the more elaborate the ringfort, usually in
4128-549: Is also an intermediate branch known as semi-permanent fortification. Castles are fortifications which are regarded as being distinct from the generic fort or fortress in that they are a residence of a monarch or noble and command a specific defensive territory. Roman forts and hill forts were the main antecedents of castles in Europe, which emerged in the 9th century in the Carolingian Empire . The Early Middle Ages saw
4300-428: Is another example of a Gaulish fortified settlement. The term casemate wall is used in the archaeology of Israel and the wider Near East , having the meaning of a double wall protecting a city or fortress, with transverse walls separating the space between the walls into chambers. These could be used as such, for storage or residential purposes, or could be filled with soil and rocks during siege in order to raise
4472-421: 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
4644-543: Is employed when in the course of a campaign it becomes desirable to protect some locality with the best imitation of permanent defences that can be made in a short time, ample resources and skilled civilian labour being available. An example of this is the construction of Roman forts in England and in other Roman territories where camps were set up with the intention of staying for some time, but not permanently. Castles are fortifications which are regarded as being distinct from
4816-519: Is formally known as poliorcetics . In some texts, this latter term also applies to the art of building a fortification. Fortification is usually divided into two branches: permanent fortification and field fortification. Permanent fortifications are erected at leisure, with all the resources that a state can supply of constructive and mechanical skill, and are built of enduring materials. Field fortifications—for example breastworks —and often known as fieldworks or earthworks, are extemporized by troops in
4988-489: 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
5160-530: 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. Other sites have provided evidence that ringforts may not have principally been farmsteads, but rather had
5332-432: 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
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5504-561: Is the position of Chalcedonian Christianity . Arianism found some favour in the Roman Empire before being eclipsed by the Chalcedonian position and then suppressed as heretical. During the migrations, or Völkerwanderung (wandering of the peoples), the earlier settled populations were sometimes left intact though usually partially or entirely displaced. Roman culture north of the Po River
5676-620: The Black Sea , creating formidable confederations which opposed the local Sarmatians . In Dacia (present-day Romania) and on the steppes north of the Black Sea the Goths , a Germanic people, established at least two kingdoms: Therving and Greuthung . The arrival of the Huns in 372–375 ended the history of these kingdoms. The Huns, a confederation of central Asian tribes, founded an empire. They had mastered
5848-732: The British Raj are found in the mainland Indian subcontinent (modern day India , Pakistan , Bangladesh and Nepal ). "Fort" is the word used in India for all old fortifications. Numerous Indus Valley Civilization sites exhibit evidence of fortifications. By about 3500 BC, hundreds of small farming villages dotted the Indus floodplain. Many of these settlements had fortifications and planned streets. The stone and mud brick houses of Kot Diji were clustered behind massive stone flood dykes and defensive walls, for neighbouring communities bickered constantly about
6020-676: The Burgundians and bands of the Alamanni . In the fit of anti-barbarian hysteria which followed, the Western Roman Emperor Honorius had Stilicho summarily beheaded (408). Stilicho submitted his neck, "with a firmness not unworthy of the last of the Roman generals ", wrote Gibbon. Honorius was left with only worthless courtiers to advise him. In 410, the Visigoths led by Alaric I captured
6192-570: The Dnieper . By the 9th century, the Slavs had expanded into sparsely inhabited territories to the south and east from these natural frontiers, peacefully assimilating the indigenous Illyrian and Finnic populations. From the 7th century, Byzantine history was greatly affected by the rise of Islam and the Caliphates . Muslim Arabs first invaded historically Roman territory under Abū Bakr , first Caliph of
6364-727: 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
6536-608: The Frankish leader Charles Martel at the Battle of Poitiers in 732. The Umayyads were overthrown in 750 by the Abbāsids and most of the Umayyad clan were massacred. A surviving Umayyad prince, Abd-ar-rahman I , escaped to Spain and founded a new Umayyad dynasty in the Emirate of Cordoba in 756. Charles Martel's son Pippin the Short retook Narbonne , and his grandson Charlemagne established
6708-552: The Gothic War (376–382) , the Goths revolted and confronted the main Roman army in the Battle of Adrianople (378). By this time, the distinction in the Roman army between Roman regulars and barbarian auxiliaries had broken down, and the Roman army was composed mainly of barbarians and soldiers recruited for a single campaign. The general decline in discipline also led to the use of smaller shields and lighter weaponry. Not wanting to share
6880-579: The Greek-speaking successor to the classical Roman Empire. The inhabitants continued to regard themselves as Romans, or Romaioi , until the fall of Constantinople to the Ottoman Empire in 1453. Despite this, to distinguish it from its predominantly Latin-speaking predecessor, historians began referring to the empire as "Byzantine", after the original name of Constantinople, Byzantium The Eastern Roman or "Byzantine" Empire aimed to retain control of
7052-614: The Indus Valley Civilization were the first small cities to be fortified. In ancient Greece , large stone walls had been built in Mycenaean Greece , such as the ancient site of Mycenae (known for the huge stone blocks of its ' cyclopean ' walls). A Greek phrourion was a fortified collection of buildings used as a military garrison , and is the equivalent of the Roman castellum or fortress. These constructions mainly served
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7224-703: The Macedonian dynasty in 867 marked the end of the period of political and religious turmoil and introduced a new golden age of the empire. While the talented generals such as Nicephorus Phocas expanded the frontiers, the Macedonian emperors (such as Leo the Wise and Constantine VII ) presided over the cultural flowering in Constantinople, known as the Macedonian Renaissance . The enlightened Macedonian rulers scorned
7396-1147: The Maratha Empire . A large majority of forts in India are in North India. The most notable forts are the Red Fort at Old Delhi , the Red Fort at Agra , the Chittor Fort and Mehrangarh Fort in Rajasthan , the Ranthambhor Fort , Amer Fort and Jaisalmer Fort also in Rajasthan and Gwalior Fort in Madhya Pradesh . Arthashastra , the Indian treatise on military strategy describes six major types of forts differentiated by their major modes of defenses. Forts in Sri Lanka date back thousands of years, with many being built by Sri Lankan kings. These include several walled cities. With
7568-847: The Marca Hispanica across the Pyrenees in part of what today is Catalonia , reconquering Girona in 785 and Barcelona in 801. The Umayyads in Hispania proclaimed themselves caliphs in 929. Climatic conditions in Western Europe began to improve after 700. In that year, the two major powers in western Europe were the Franks in Gaul and the Lombards in Italy. The Lombards had been thoroughly Romanized, and their kingdom
7740-574: The Mediterranean . The fortifications were continuously being expanded and improved. Around 600 BC, in Heuneburg , Germany, forts were constructed with a limestone foundation supported by a mudbrick wall approximately 4 metres tall, probably topped by a roofed walkway, thus reaching a total height of 6 metres. The wall was clad with lime plaster, regularly renewed. Towers protruded outwards from it. The Oppidum of Manching (German: Oppidum von Manching)
7912-608: The Moors (mostly Berbers and some Arabs ) invaded the Christian Visigothic Kingdom in the year 711, under their Berber leader Tariq ibn Ziyad . They landed at Gibraltar on 30 April and worked their way northward. Tariq's forces were joined the next year by those of his superior, Musa ibn Nusair . During the eight-year campaign most of the Iberian Peninsula was brought under Muslim rule—except for small areas in
8084-552: The Napoleonic wars . Most of the colonial forts were garrisoned up until the early 20th century. The coastal forts had coastal artillery manned by the Ceylon Garrison Artillery during the two world wars. Most of these were abandoned by the military but retained civil administrative officers, while others retained military garrisons, which were more administrative than operational. Some were reoccupied by military units with
8256-421: The Nordic states and in Britain , the fortifications of Berwick-upon-Tweed and the harbour archipelago of Suomenlinna at Helsinki being fine examples. During the 18th century, it was found that the continuous enceinte , or main defensive enclosure of a bastion fortress, could not be made large enough to accommodate the enormous field armies which were increasingly being employed in Europe; neither could
8428-413: The Old City of Shanghai , Suzhou , Xi'an and the walled villages of Hong Kong . The famous walls of the Forbidden City in Beijing were established in the early 15th century by the Yongle Emperor . The Forbidden City made up the inner portion of the Beijing city fortifications . During the Spanish Era several forts and outposts were built throughout the archipelago. Most notable is Intramuros ,
8600-454: The Plague of Justinian . The Emperor himself was afflicted, and within the span of less than a year, an estimated 200,000 Constantinopolites—two out of every five city residents—had died of the disease. Justinian's successors Maurice and Heraclius confronted invasions by the Avar and Slavic tribes. After the devastations by the Slavs and the Avars, large areas of the Balkans became depopulated. In 626 Constantinople, by far
8772-564: The Po River had been wiped out in the years after the end of the Western Roman Empire, between the 5th and 8th centuries, new political and social infrastructure began to develop. Much of this was initially Germanic and pagan. Arian Christian missionaries had been spreading Arian Christianity throughout northern Europe, though by 700 the religion of northern Europeans was largely a mix of Germanic paganism , Christianized paganism, and Arian Christianity. Chalcedonian Christianity had barely started to spread in northern Europe by this time. Through
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#17330923765258944-481: The Rashidun Caliphate , who entered Roman Syria and Roman Mesopotamia . The Byzantines and neighbouring Persian Sasanids had been severely weakened by a long succession of Byzantine–Sasanian wars , especially the climactic Byzantine–Sasanian War of 602–628 . Under Umar , the second Caliph, the Muslims decisively conquered Syria and Mesopotamia , as well as Roman Palestine , Roman Egypt , parts of Asia Minor and Roman North Africa , while they entirely toppled
9116-461: The Siege of Ta'if in January 630, Muhammad ordered his followers to attack enemies who fled from the Battle of Hunayn and sought refuge in the fortress of Taif. The entire city of Kerma in Nubia (present day Sudan) was encompassed by fortified walls surrounded by a ditch. Archaeology has revealed various Bronze Age bastions and foundations constructed of stone together with either baked or unfired brick. The walls of Benin are described as
9288-427: The Tang dynasty (618–907 AD). The Great Wall of China had been built since the Qin dynasty (221–207 BC), although its present form was mostly an engineering feat and remodelling of the Ming dynasty (1368–1644 AD). In addition to the Great Wall, a number of Chinese cities also employed the use of defensive walls to defend their cities. Notable Chinese city walls include the city walls of Hangzhou , Nanjing ,
9460-419: The Theodosian Walls of Constantinople , together with partial remains elsewhere. These are mostly city gates, like the Porta Nigra in Trier or Newport Arch in Lincoln . Hadrian's Wall was built by the Roman Empire across the width of what is now northern England following a visit by Roman Emperor Hadrian (AD 76–138) in AD 122. A number of forts dating from the Later Stone Age to
9632-419: The arrival of Christian missionaries in 597 . The Lombards, who first entered Italy in 568 under Alboin , carved out a state in the north, with its capital at Pavia . At first, they were unable to conquer the Exarchate of Ravenna , the Ducatus Romanus , and Calabria and Apulia . The next two hundred years were occupied in trying to conquer these territories from the Byzantine Empire. The Lombard state
9804-500: The decline of the Western Roman Empire , and preceding the High Middle Ages ( c. 11th to 14th centuries). The alternative term late antiquity , for the early part of the period, emphasizes elements of continuity with the Roman Empire , while Early Middle Ages is used to emphasize developments characteristic of the earlier medieval period. The period saw a continuation of trends evident since late classical antiquity , including population decline , especially in urban centres,
9976-401: The "Great Wall of Brodgar" it was 4 metres (13 ft) thick and 4 metres tall. The wall had some symbolic or ritualistic function. The Assyrians deployed large labour forces to build new palaces , temples and defensive walls. In Bronze Age Malta , some settlements also began to be fortified. The most notable surviving example is Borġ in-Nadur , where a bastion built in around 1500 BC
10148-594: The 11th century Culhwch and Olwen . Castle Dore is often proposed as the court of King Mark (Mergh Cunomor / Marcus Cunomorus) in the romance Drustan hac Yseult , the doomed hero sailing the seas from Brittany to Ireland to seek his love. The royal sites of Ireland are also sometimes called ringforts, although their role seems to have been mainly ceremonial. They include: Fortification From very early history to modern times, defensive walls have often been necessary for cities to survive in an ever-changing world of invasion and conquest . Some settlements in
10320-530: The 19th and early 20th centuries. The advances in modern warfare since World War I have made large-scale fortifications obsolete in most situations. Many United States Army installations are known as forts, although they are not always fortified. During the pioneering era of North America, many outposts on the frontiers, even non-military outposts, were referred to generically as forts. Larger military installations may be called fortresses; smaller ones were once known as fortalices. The word fortification can refer to
10492-453: The 3rd century as from the first. Estimates of the population of the Roman Empire during the period from 150 to 400 suggest a fall from 65 million to 50 million, a decline of more than 20 percent. Some scholars have connected this de-population to the Dark Ages Cold Period (300–700), when a decrease in global temperatures impaired agricultural yields. Early in the 3rd century Germanic peoples migrated south from Scandinavia and reached
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#173309237652510664-450: The 6th century, but then lost their trading links. Administrative, educational and military infrastructure quickly vanished, and the loss of the established cursus honorum led to the collapse of the schools and to a rise of illiteracy even among the leadership. The careers of Cassiodorus (died c. 585 ) at the beginning of this period and of Alcuin of York (died 804) at its close were founded alike on their valued literacy. For
10836-407: The 7th century the Rashidun Caliphate and the Umayyad Caliphate conquered the southern part of the Roman territory. Many of the listed trends reversed later in the period. In 800, the title of Emperor was revived in Western Europe with Charlemagne , whose Carolingian Empire greatly affected later European social structure and history. Europe experienced a return to systematic agriculture in
11008-422: The 8th century was out, the Farmer's Law signalled the resurrection of agricultural technologies in the Roman Empire. As the 2006 Encyclopædia Britannica noted, "the technological base of Byzantine society was more advanced than that of contemporary western Europe: iron tools could be found in the villages; water mills dotted the landscape; and field-sown beans provided a diet rich in protein". The ascension of
11180-408: The Anglo-Saxons in the sixth century, with 597 given as the traditional date for its large-scale adoption. Western Britain ( Wales ), eastern and northern Scotland ( Pictland ) and the Scottish highlands and isles continued their separate evolution. The Irish descended and Irish-influenced people of western Scotland were Christian from the fifth century onward, the Picts adopted Christianity in
11352-409: The Early Middle Ages, reducing the sprawling city to groups of inhabited buildings interspersed among large areas of ruins and vegetation. The death of Theodosius I in 395 was followed by the division of the empire between his two sons. The Western Roman Empire disintegrated into a mosaic of warring Germanic kingdoms in the 5th century, effectively making the Eastern Roman Empire in Constantinople
11524-490: The German church, with the result that, within a century, the German church was the strongest church in western Europe. Yet despite this, Charles Martel refused to overthrow the Frankish king. His son, Pepin the Short, inherited his power, and used it to further expand Frankish influence. Unlike his father, however, Pepin decided to seize the Frankish kingship. Given how strongly Frankish culture held to its principle of inheritance, few would support him if he attempted to overthrow
11696-458: The Indus Valley Civilization were fortified. Forts also appeared in urban cities of the Gangetic valley during the second urbanisation period between 600 and 200 BC, and as many as 15 fortification sites have been identified by archaeologists throughout the Gangetic valley, such as Kaushambi , Mahasthangarh , Pataliputra , Mathura , Ahichchhatra , Rajgir , and Lauria Nandangarh . The earliest Mauryan period brick fortification occurs in one of
11868-455: The Iron Age and peaking in Iron Age II (10th–6th century BC). However, the construction of casemate walls had begun to be replaced by sturdier solid walls by the 9th century BC , probably due the development of more effective battering rams by the Neo-Assyrian Empire . Casemate walls could surround an entire settlement, but most only protected part of it. The three different types included freestanding casemate walls, then integrated ones where
12040-526: 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
12212-428: The Roman Empire, including Rome and the Italian peninsula itself, but he also codified Roman law (with his codification remaining in force in many areas of Europe until the 19th century) and commissioned the building of the largest and most architecturally advanced edifice of the Early Middle Ages, the Hagia Sophia . However, his reign also saw the outbreak of a bubonic plague pandemic , now known retroactively as
12384-523: The Roman empire were a mixture of Roman Christian , Arian Christian , Nestorian Christian , and pagan . The Germanic peoples knew little of cities, money, or writing, and were mostly pagan, though they were increasingly converting to Arianism , a non-trinitarian form of Christianity that considers God the Son to have been created by, and thus inferior to, God the Father, rather than the two being co-eternal , which
12556-600: The Roman military writer Ammianus Marcellinus . The core army of the Eastern Roman Empire was destroyed, Valens was killed, and the Goths were freed to lay waste to the Balkans , including the armories along the Danube. As Edward Gibbon comments, "The Romans, who so coolly and so concisely mention the acts of justice which were exercised by the legions, reserve their compassion and their eloquence for their own sufferings, when
12728-808: The Sasanids. In the mid 7th century, following the Muslim conquest of Persia , Islam penetrated into the Caucasus region, of which parts would later permanently become part of Russia . This expansion of Islam continued under Umar's successors and then the Umayyad Caliphate , which conquered the rest of Mediterranean North Africa and most of the Iberian Peninsula . Over the next centuries Muslim forces were able to take further European territory, including Cyprus , Malta , Septimania , Crete , and Sicily and parts of southern Italy . The Muslim conquest of Hispania began when
12900-592: 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
13072-508: The ancient site of Mycenae (famous for the huge stone blocks of its ' cyclopean ' walls). In classical era Greece , the city of Athens built two parallel stone walls, called the Long Walls , that reached their fortified seaport at Piraeus a few miles away. In Central Europe , the Celts built large fortified settlements known as oppida , whose walls seem partially influenced by those built in
13244-410: The arrival of cannons on the 14th century battlefield . Fortifications in the age of black powder evolved into much lower structures with greater use of ditches and earth ramparts that would absorb and disperse the energy of cannon fire. Walls exposed to direct cannon fire were very vulnerable, so were sunk into ditches fronted by earth slopes. This placed a heavy emphasis on the geometry of
13416-419: The assumption that all ringfort in a region were probably occupied contemporarily, and that in a particular area one ringfort would be in the sight of at least one other neighbouring ringfort so that if one ringfort were attacked, relief would possibly come from a neighbouring one. Furthermore, a number of aspects of the generally circular nature of the ringfort highlight the defensive advantages, most notably that
13588-465: The banks in signifying nobility , kingship and authority. This relationship can be quite clearly seen in the following extract from the Críth Gablach : What is the due of a king who is always in residence at the head of his tuath ? Seven score feet of perfect feet are the measure of his stockade on every side. Seven feet are the thickness of its earthwork, and twelve feet its depth. It is then that he
13760-652: 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
13932-459: 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. While it would seem probable that some ringforts may have seen continuation in
14104-409: The characteristic findings of smallpox. Waves of epidemics wiped out large rural populations. Most of the details about the epidemics are lost, probably due to the scarcity of surviving written records. For almost a thousand years, Rome was the most politically important, richest and largest city in Europe. Around 100 AD, it had a population of about 450,000, and declined to a mere 20,000 during
14276-480: The circular shape and souterrains ( fogous ), 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. Hillforts are also known from Scandinavia, of which nineteen can be found on
14448-467: The city of Rome and for three days fire and slaughter ensued as bodies filled the streets, palaces were stripped of their valuables, and the invaders interrogated and tortured those citizens thought to have hidden wealth. As newly converted Christians, the Goths respected church property, but those who found sanctuary in the Vatican and in other churches were the fortunate few. The Goths and Vandals were only
14620-560: The control of prime agricultural land. The fortification varies by site. While Dholavira has stone-built fortification walls, Harrapa is fortified using baked bricks; sites such as Kalibangan exhibit mudbrick fortifications with bastions and Lothal has a quadrangular fortified layout. Evidence also suggested of fortifications in Mohenjo-daro . Even a small town—for instance, Kotada Bhadli, exhibiting sophisticated fortification-like bastions—shows that nearly all major and minor towns of
14792-407: The creation of some towns built around castles. Medieval-style fortifications were largely made obsolete by the arrival of cannons in the 14th century. Fortifications in the age of black powder evolved into much lower structures with greater use of ditches and earth ramparts that would absorb and disperse the energy of cannon fire. Walls exposed to direct cannon fire were very vulnerable, so
14964-618: The culture and the imperial traditions of the Eastern Roman Empire attracted its northern neighbours—Slavs, Bulgars, and Khazars—to Constantinople , in search of either pillage or enlightenment. The movement of the Germanic tribes to the south triggered the great migration of the Slavs , who occupied the vacated territories. In the 7th century, they moved westward to the Elbe , southward to the Danube and eastward to
15136-488: The culture of the newcomers, their warband loyalties, the remnants of classical culture, and Christian influences, produced a new model for society, based in part on feudal obligations . The centralized administrative systems of the Romans did not withstand the changes, and the institutional support for chattel slavery largely disappeared. The Anglo-Saxons in England had also started to convert from Anglo-Saxon polytheism after
15308-931: The current level of military development. During the Renaissance era , the Venetian Republic raised great walls around cities, and the finest examples, among others, are in Nicosia (Cyprus), Rocca di Manerba del Garda (Lombardy), and Palmanova (Italy), or Dubrovnik (Croatia), which proved to be futile against attacks but still stand to this day. Unlike the Venetians, the Ottomans used to build smaller fortifications but in greater numbers, and only rarely fortified entire settlements such as Počitelj , Vratnik , and Jajce in Bosnia . Medieval-style fortifications were largely made obsolete by
15480-412: 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
15652-420: 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. It has traditionally been understood that
15824-711: The decisive victory at Ongala in 680 the armies of the Bulgars and Slavs advanced to the south of the Balkan mountains, defeating again the Byzantines who were then forced to sign a humiliating peace treaty which acknowledged the establishment of the First Bulgarian Empire on the borders of the Empire. To counter these threats a new system of administration was introduced. The regional civil and military administration were combined in
15996-485: The defences be constructed far enough away from the fortress town to protect the inhabitants from bombardment by the besiegers, the range of whose guns was steadily increasing as better manufactured weapons were introduced. Threfore, since refortifying the Prussian fortress cities of Koblenz and Cologne after 1815, the principle of the ring fortress or girdle fortress was used: forts, each several hundred metres out from
16168-431: The difficult art of shooting composite recurve bows from horseback. The Goths sought refuge in Roman territory (376), agreeing to enter the Empire as unarmed settlers. However many bribed the Danube border-guards into allowing them to bring their weapons. The discipline and organization of a Roman legion made it a superb fighting unit. The Romans preferred infantry to cavalry because infantry could be trained to retain
16340-418: The effect of weakening the power of the king as his kingdom grew, since the result was that the land became controlled not just by more princes and vassals, but by multiple layers of vassals. This also allowed his nobles to attempt to build their own power base, though given the strict salic tradition of hereditary kingship, few would ever consider overthrowing the king. This increasingly fragmented arrangement
16512-490: The end of the century. Roman Britain was in a state of political and economic collapse at the time of the Roman departure c. 400. A series of settlements (traditionally referred to as an invasion) by Germanic peoples began in the early fifth century, and by the sixth century the island would consist of many small kingdoms engaged in ongoing warfare with each other. The Germanic kingdoms are now collectively referred to as Anglo-Saxons . Christianity began to take hold among
16684-704: The escalation of the Sri Lankan Civil War ; Jaffna fort , for example, came under siege several times. Large tempered earth (i.e. rammed earth ) walls were built in ancient China since the Shang dynasty ( c. 1600 –1050 BC); the capital at ancient Ao had enormous walls built in this fashion (see siege for more info). Although stone walls were built in China during the Warring States (481–221 BC), mass conversion to stone architecture did not begin in earnest until
16856-556: The face of the pretensions of both the Western and Eastern Empires. In the 9th century, the Muslims conquered Sicily . The cities on the Tyrrhenian Sea departed from Byzantine allegiance. Various states owing various nominal allegiances fought constantly over territory until events came to a head in the early 11th century with the coming of the Normans , who conquered the whole of the south by
17028-400: The field, perhaps assisted by such local labour and tools as may be procurable and with materials that do not require much preparation, such as soil, brushwood, and light timber , or sandbags (see sangar ). An example of field fortification was the construction of Fort Necessity by George Washington in 1754. There is also an intermediate branch known as semi-permanent fortification. This
17200-500: The first of many bands of peoples that flooded Western Europe in the absence of administrative governance. Some lived only for war and pillage and disdained Roman ways. Other peoples had been in prolonged contact with the Roman civilization, and were, to a certain degree, romanized. "A poor Roman plays the Goth, a rich Goth the Roman," said King Theoderic of the Ostrogoths. The subjects of
17372-521: The form of the feudal system , which adopted such innovations as three-field planting and the heavy plough. Barbarian migration stabilized in much of Europe , although the Viking expansion greatly affected Northern Europe . Starting in the 2nd century, various indicators of Roman civilization began to decline, including urbanization , seaborne commerce, and population. Archaeologists have identified only 40 percent as many Mediterranean shipwrecks from
17544-471: The formation in combat, while cavalry tended to scatter when faced with opposition. While a barbarian army could be raised and inspired by the promise of plunder, the legions required a central government and taxation to pay for salaries, constant training, equipment, and food. The decline in agricultural and economic activity reduced the empire's taxable income and thus its ability to maintain a professional army to defend itself from external threats. In
17716-591: The former Roman provinces in Gaul, and Clovis I converted to Christianity following his victory over the Alemanni at the Battle of Tolbiac (496), laying the foundation of the Frankish Empire , the dominant state of early medieval Western Christendom . The Frankish kingdom grew through a complex development of conquest, patronage, and alliance building. Due to salic custom , inheritance rights were absolute, and all land
17888-419: The formerly Roman area, there was another 20 per cent decline in population between 400 and 600, or a one-third decline for 150–600. In the 8th century, the volume of trade reached its lowest level. The very small number of shipwrecks found that dated from the 8th century supports this (which represents less than 2 per cent of the number of shipwrecks dated from the 1st century). There was also reforestation and
18060-461: The forms of multiple outlying banks, the higher the status of the occupant. This emphasis on status in the function of the ringfort over that of defence would explain a number of defensive weaknesses of the ringfort. Banks, or multiples of them, would not appear to offer the best return to their builders for their defensive value in comparison to a fence or a hedge. Also, few of the ringforts where buildings have been found inside, would be able to survive
18232-467: The fortification to allow defensive cannonry interlocking fields of fire to cover all approaches to the lower and thus more vulnerable walls. The evolution of this new style of fortification can be seen in transitional forts such as Sarzanello in North West Italy which was built between 1492 and 1502. Sarzanello consists of both crenellated walls with towers typical of the medieval period but also has
18404-521: The frontiers of the Nile Valley to protect against invaders from neighbouring territories, as well as circle-shaped mud brick walls around their cities. Many of the fortifications of the ancient world were built with mud brick, often leaving them no more than mounds of dirt for today's archaeologists. A massive prehistoric stone wall surrounded the ancient temple of Ness of Brodgar 3200 BC in Scotland . Named
18576-504: The generic fort or fortress in that it describes a residence of a monarch or noble and commands a specific defensive territory. An example of this is the massive medieval castle of Carcassonne . Defensive fences for protecting humans and domestic animals against predators was used long before the appearance of writing and began "perhaps with primitive man blocking the entrances of his caves for security from large carnivores ". From very early history to modern times, walls have been
18748-532: The glory, Eastern Emperor Valens ordered an attack on the Therving infantry under Fritigern without waiting for Western Emperor Gratian , who was on the way with reinforcements. While the Romans were fully engaged, the Greuthung cavalry arrived. Only one-third of the Roman army managed to escape. This represented the most shattering defeat that the Romans had suffered since the Battle of Cannae (216 BC), according to
18920-468: The hands of a general, or strategos. A theme , which formerly denoted a subdivision of the Byzantine army, came to refer to a region governed by a strategos. The reform led to the emergence of great landed families which controlled the regional military and often pressed their claims to the throne (see Bardas Phocas and Bardas Sklerus for characteristic examples). By the early 8th century, notwithstanding
19092-518: The height of the Maguindanao Sultanate 's power, they blanketed the areas around Western Mindanao with kotas and other fortifications to block the Spanish advance into the region. These kotas were usually made of stone and bamboo or other light materials and surrounded by trench networks. As a result, some of these kotas were burned easily or destroyed. With further Spanish campaigns in the region,
19264-413: The inner wall was part of the outer buildings of the settlement, and finally filled casemate walls, where the rooms between the walls were filled with soil right away, allowing for a quick, but nevertheless stable construction of particularly high walls. The Romans fortified their cities with massive, mortar-bound stone walls. The most famous of these are the largely extant Aurelian Walls of Rome and
19436-402: The intervals between them. The arrival of explosive shells in the 19th century led to yet another stage in the evolution of fortification. Star forts did not fare well against the effects of high explosives and the intricate arrangements of bastions, flanking batteries and the carefully constructed lines of fire for the defending cannon could be rapidly disrupted by explosive shells. Worse,
19608-541: The island. They are common throughout the country, with a mean density of just over one ringfort within any area of 2 km (0.8 sq mi). It is likely that many have been destroyed by farming and urbanisation. 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. In Cornwall, parts of Devon, and south Wales, enclosed settlements share many characteristics with their Irish counterparts, including
19780-644: The king. Instead, he sought the assistance of Pope Zachary , who was himself newly vulnerable due to fallout with the Byzantine Emperor over the Iconoclastic Controversy . Pepin agreed to support the pope and to give him land (the Donation of Pepin , which created the Papal States ) in exchange for being consecrated as the new Frankish king. Given that Pepin's claim to the kingship was now based on an authority higher than Frankish custom, no resistance
19952-413: The large open ditches surrounding forts of this type were an integral part of the defensive scheme, as was the covered way at the edge of the counter scarp . The ditch was extremely vulnerable to bombardment with explosive shells. In response, military engineers evolved the polygonal style of fortification. The ditch became deep and vertically sided, cut directly into the native rock or soil, laid out as
20124-504: The largest city of early medieval Europe, withstood a combined siege by Avars and Persians. Within several decades, Heraclius completed a holy war against the Persians, taking their capital and having a Sassanid monarch assassinated. Yet Heraclius lived to see his spectacular success undone by the Muslim conquests of Syria , three Palaestina provinces , Egypt , and North Africa which was considerably facilitated by religious disunity and
20296-707: The last king of a united empire, Charles the Fat , died in 887, which resulted in a permanent split of the empire into West Francia and East Francia . West Francia would be ruled by Carolingians until 987 and East Francia until 911, after which time the partition of the empire into France and Germany was complete. Around 800 there was a return to systematic agriculture in the form of the open field , or strip, system. A manor would have several fields, each subdivided into 1-acre (4,000 m ) strips of land. An acre measured one "furlong" of 220 yards by one "chain" of 22 yards (that is, about 200 m by 20 m). A furlong (from "furrow long")
20468-574: The leadership of Alfred the Great and his descendants, Wessex would at first survive, then coexist with, and eventually conquer the Danes. It would then establish the Kingdom of England and rule until the establishment of an Anglo-Danish kingdom under Cnut , and then again until the Norman Invasion of 1066. Viking raids and invasion were no less dramatic for the north. Their defeat of the Picts in 839 led to
20640-476: The main antecedents of castles in Europe , which emerged in the 9th century in the Carolingian Empire . The Early Middle Ages saw the creation of some towns built around castles. These cities were only rarely protected by simple stone walls and more usually by a combination of both walls and ditches . From the 12th century, hundreds of settlements of all sizes were founded all across Europe, which very often obtained
20812-604: The ninth century under the descendants of Merfyn Frych of Gwynedd , establishing a hierarchy that would last until the Norman invasion of Wales in 1081. The first Viking raids on Britain began before 800, increasing in scope and destructiveness over time. In 865 a large, well-organized Danish Viking army (called the Great Heathen Army ) attempted a conquest, breaking or diminishing Anglo-Saxon power everywhere but in Wessex. Under
20984-557: The north-northwest ( Asturias ) and largely Basque regions in the Pyrenees . This territory, under the Arab name Al-Andalus , became part of the expanding Umayyad empire. The unsuccessful second siege of Constantinople (717) weakened the Umayyad dynasty and reduced their prestige. After their success in overrunning Iberia, the conquerors moved northeast across the Pyrenees. They were defeated by
21156-525: The old walled city of Manila located along the southern bank of the Pasig River . The historic city was home to centuries-old churches, schools, convents, government buildings and residences, the best collection of Spanish colonial architecture before much of it was destroyed by the bombs of World War II . Of all the buildings within the 67-acre city, only one building, the San Agustin Church, survived
21328-440: The original enceinte, were carefully sited so as to make best use of the terrain and to be capable of mutual support with the neighbouring forts. Gone were citadels surrounding towns: forts were to be moved to the outside of the cities some 12 km to keep the enemy at a distance so their artillery could not bombard the city center. From now on a ring of forts were to be built at a spacing that would allow them to effectively cover
21500-711: The outset of colonial rule in the Indian Ocean , Sri Lanka was occupied by several major colonial empires that from time to time became the dominant power in the Indian Ocean. The colonists built several western-style forts, mostly in and around the coast of the island. The first to build colonial forts in Sri Lanka were the Portuguese ; these forts were captured and later expanded by the Dutch . The British occupied these Dutch forts during
21672-445: The ox by the horse after the introduction of the padded horse collar in the 12th century. Because the system required a major rearrangement of real estate and of the social order, it took until the 11th century before it came into general use. The heavy wheeled plough was introduced in the late 10th century. It required greater animal power and promoted the use of teams of oxen. Illuminated manuscripts depict two-wheeled ploughs with both
21844-664: The practice of simony , local princes typically auctioned off ecclesiastical offices, causing priests and bishops to function as though they were yet another noble under the patronage of the prince. In contrast, a network of monasteries had sprung up as monks sought separation from the world. These monasteries remained independent from local princes, and as such constituted the "church" for most northern Europeans during this time. Being independent from local princes, they increasingly stood out as centres of learning, of scholarship, and as religious centres where individuals could receive spiritual or monetary assistance. The interaction between
22016-409: The practice of improving an area's defense with defensive works. City walls are fortifications but are not necessarily called fortresses. The art of setting out a military camp or constructing a fortification traditionally has been called castrametation since the time of the Roman legions . Laying siege to a fortification and of destroying it is commonly called siegecraft or siege warfare and
22188-516: The proliferation of heretical movements (notably Monophysitism and Nestorianism ) in the areas converted to Islam. Although Heraclius's successors managed to salvage Constantinople from two Arab sieges (in 674–77 and 717), the empire of the 8th and early 9th century was rocked by the great Iconoclastic Controversy , punctuated by dynastic struggles between various factions at court. The Bulgar and Slavic tribes profited from these disorders and invaded Illyria , Thrace and even Greece . After
22360-402: The provinces were invaded and desolated by the arms of the successful Barbarians." The empire lacked the resources, and perhaps the will, to reconstruct the professional mobile army destroyed at Adrianople, so it had to rely on barbarian armies to fight for it. The Eastern Roman Empire succeeded in buying off the Goths with tribute. The Western Roman Empire proved less fortunate. Stilicho ,
22532-471: The purpose of a watch tower, to guard certain roads, passes, and borders. Though smaller than a real fortress, they acted as a border guard rather than a real strongpoint to watch and maintain the border. The art of setting out a military camp or constructing a fortification traditionally has been called "castrametation" since the time of the Roman legions . Fortification is usually divided into two branches: permanent fortification and field fortification. There
22704-636: The resistance of the outer wall against battering rams. Originally thought to have been introduced to the region by the Hittites , this has been disproved by the discovery of examples predating their arrival, the earliest being at Ti'inik (Taanach) where such a wall has been dated to the 16th century BC . Casemate walls became a common type of fortification in the Southern Levant between the Middle Bronze Age (MB) and Iron Age II, being more numerous during
22876-429: The right of fortification soon afterward. The founding of urban centres was an important means of territorial expansion and many cities, especially in eastern Europe , were founded precisely for this purpose during the period of Eastern Colonisation . These cities are easy to recognise due to their regular layout and large market spaces. The fortifications of these settlements were continuously improved to reflect
23048-409: The ringfort had a defensive aspect, and in a cattle-dominated society it is generally argued that the purpose of the ringfort was to provide protection to a small community and their livestock during a 'hit and run' raid for cattle, the idea being that the ringfort would provide adequate defence for a small period of time. This theory is strengthened by the idea of 'visual territories' which operates from
23220-881: 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 c. 400 AD , and the introduction of ringforts. In support of this he notes that: "The other major Eoganachta ringforts [other than Cashel ] 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
23392-538: 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
23564-526: The rulers of Western Europe as illiterate barbarians and maintained a nominal claim to rule over the West. Although this fiction had been exploded with the coronation of Charlemagne in Rome (800), the Byzantine rulers did not treat their Western counterparts as equals. Generally, they had little interest in political and economic developments in the barbarian (from their point of view) West. Against this economic background
23736-621: The same premise, as is highlighted here by Tadhg O'Keefe in relation to the latter argument: The a priori case for attributing some ringforts to the Later Middle Ages... is based on the absence of any other settlement form of appropriate date in those landscapes. In other words, if the Gaelic-Irish did not live in ringforts, where did they live? 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
23908-423: The shrinking territory of the empire, Constantinople remained the largest and the wealthiest city west of China , comparable only to Sassanid Ctesiphon , and later Abbasid Baghdad . The population of the imperial capital fluctuated between 300,000 and 400,000 as the emperors undertook measures to restrain its growth. The only other large Christian cities were Rome (50,000) and Thessalonica (30,000). Even before
24080-485: The sixth century under the influence of Columba , and the Welsh had been Christian since the Roman era. The Kingdom of Northumbria was the pre-eminent power c. 600–700, absorbing several weaker Anglo-Saxon and Brythonic kingdoms, while Mercia held a similar status c. 700–800. Wessex would absorb all of the kingdoms in the south, both Anglo-Saxon and Briton. In Wales consolidation of power would not begin until
24252-435: The stockades by mounting old-fashioned bayonet charges, after laying down some covering fire. Defensive works were of importance in the tropical African Kingdoms. In the Kingdom of Kongo field fortifications were characterized by trenches and low earthen embankments. Such strongpoints ironically, sometimes held up much better against European cannon than taller, more imposing structures. Roman forts and hill forts were
24424-438: The stupa mounds of Lauria Nandangarh, which is 1.6 km in perimeter and oval in plan and encloses a habitation area. Mundigak ( c. 2500 BC ) in present-day south-east Afghanistan has defensive walls and square bastions of sun dried bricks. India currently has over 180 forts, with the state of Maharashtra alone having over 70 forts, which are also known as durg , many of them built by Shivaji , founder of
24596-626: The sultanate was subdued and a majority of kotas dismantled or destroyed. kotas were not only used by the Muslims as defense against Spaniards and other foreigners, renegades and rebels also built fortifications in defiance of other chiefs in the area. During the American occupation, rebels built strongholds and the datus, rajahs, or sultans often built and reinforced their kotas in a desperate bid to maintain rule over their subjects and their land. Many of these forts were also destroyed by American expeditions, as
24768-412: The third was fallow. Compared to the earlier two-field system, a three-field system allowed for significantly more land to be put under cultivation. Even more important, the system allowed for two harvests a year, reducing the risk that a single crop failure will lead to famine. Three-field agriculture created a surplus of oats that could be used to feed horses. This surplus allowed for the replacement of
24940-528: The trade routes between Europe and the Orient, which made the Empire the richest polity in Medieval Europe. Making use of their sophisticated warfare and superior diplomacy, the Byzantines managed to fend off assaults by the migrating barbarians. Their dreams of subduing the Western potentates briefly materialized during the reign of Justinian I in 527–565. Not only did Justinian restore some western territories to
25112-474: The two sides in a stalemate. Hoping to make several attacks at once, the confederates persuaded the Medina-allied Banu Qurayza to attack the city from the south. However, Muhammad's diplomacy derailed the negotiations, and broke up the confederacy against him. The well-organized defenders, the sinking of confederate morale, and poor weather conditions caused the siege to end in a fiasco. During
25284-464: 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 (64% of dated sites were from Ulster), and
25456-499: The walls were sunk into ditches fronted by earth slopes to improve protection. The arrival of explosive shells in the 19th century led to another stage in the evolution of fortification. Star forts did not fare well against the effects of high explosives, and the intricate arrangements of bastions, flanking batteries and the carefully constructed lines of fire for the defending cannon could be rapidly disrupted by explosive shells. Steel -and- concrete fortifications were common during
25628-559: The war. Partial listing of Spanish forts: The Ivatan people of the northern islands of Batanes built their so-called idjang on hills and elevated areas to protect themselves during times of war. These fortifications were likened to European castles because of their purpose. Usually, the only entrance to the castles would be via a rope ladder that would only be lowered for the villagers and could be kept away when invaders arrived. The Igorots built forts made of stone walls that averaged several meters in width and about two to three times
25800-571: The western empire's half-Vandal military commander, stripped the Rhine frontier of troops to fend off invasions of Italy by the Visigoths in 402–03 and by other Goths in 406–07. Fleeing before the advance of the Huns , the Vandals , Suebi , and Alans launched an attack across the frozen Rhine near Mainz ; on 31 December 406, the frontier gave way and these tribes surged into Roman Gaul . There soon followed
25972-410: The width in height around 2000 BC. The Muslim Filipinos of the south built strong fortresses called kota or moong to protect their communities. Usually, many of the occupants of these kotas are entire families rather than just warriors. Lords often had their own kotas to assert their right to rule, it served not only as a military installation but as a palace for the local Lord. It is said that at
26144-572: The world's second longest man-made structure, as well as the most extensive earthwork in the world, by the Guinness Book of Records, 1974 . The walls may have been constructed between the thirteenth and mid-fifteenth century CE or, during the first millennium CE. Strong citadels were also built other in areas of Africa. Yorubaland for example had several sites surrounded by the full range of earthworks and ramparts seen elsewhere, and sited on ground. This improved defensive potential—such as hills and ridges. Yoruba fortifications were often protected with
26316-480: The world. Some historians such as Josiah C. Russell (1958) have suggested a total European population loss of 50 to 60 per cent between 541 and 700. After the year 750, major epidemic diseases did not appear again in Europe until the Black Death of the 14th century. The disease smallpox , which was eradicated in the late 20th century, did not definitively enter Western Europe until about 581 when Bishop Gregory of Tours provided an eyewitness account that describes
26488-402: Was divided equally among the sons of a dead land holder. This meant that, when the king granted a prince land in reward for service, that prince and all of his descendants had an irrevocable right to that land that no future king could undo. Likewise, those princes (and their sons) could sublet their land to their own vassals, who could in turn sublet the land to lower sub-vassals. This all had
26660-430: Was a large Celtic proto-urban or city-like settlement at modern-day Manching (near Ingolstadt), Bavaria (Germany). The settlement was founded in the 3rd century BC and existed until c. 50–30 BC . It reached its largest extent during the late La Tène period (late 2nd century BC), when it had a size of 380 hectares. At that time, 5,000 to 10,000 people lived within its 7.2 km long walls. The oppidum of Bibracte
26832-633: Was almost entirely displaced by the migrations. Whereas the peoples of France, Italy, Spain and Portugal continued to speak the dialects of Vulgar Latin that today constitute the Romance languages , the language of the smaller Roman-era population of what is now England disappeared with barely a trace in the territories settled by the Anglo-Saxons, although the Brittanic kingdoms of the west remained Brythonic speakers. The new peoples greatly altered established society, including law, culture, religion, and patterns of property ownership. The pax Romana had provided safe conditions for trade and manufacture, and
27004-408: 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
27176-627: Was bound to serve his superior in return for the latter's protection. This made for confusion of territorial sovereignty since allegiances were subject to change over time and were sometimes mutually contradictory. Feudalism allowed the state to provide a degree of public safety despite the continued absence of bureaucracy and written records. Manors became largely self-sufficient, and the volume of trade along long-distance routes and in market towns declined during this period, though never ceased entirely. Roman roads decayed and long-distance trade depended more heavily on water transport. The Viking Age spans
27348-426: Was composed in poor Latin in 643: the Edictum Rothari . It was primarily the codification of the oral legal tradition of the people. The Lombard state was well-organized and stabilized by the end of the long reign of Liutprand (717–744), but its collapse was sudden. Unsupported by the dukes, King Desiderius was defeated and forced to surrender his kingdom to Charlemagne in 774. The Lombard kingdom ended and
27520-421: Was considered to be the distance an ox could plough before taking a rest; the strip shape of the acre field also reflected the difficulty in turning early heavy ploughs. In the idealized form of the system, each family got thirty such strips of land. The three-field system of crop rotation was first developed in the 9th century: wheat or rye was planted in one field, the second field had a nitrogen-fixing crop, and
27692-418: Was crowned "Roman Emperor" by Pope Leo III on Christmas Day, 800. Upon Charlemagne's death, his empire had united much of modern-day France, western Germany and northern Italy. The years after his death illustrated how Germanic his empire remained. Rather than an orderly succession, his empire was divided in accordance with Frankish inheritance custom, which resulted in instability that plagued his empire until
27864-549: Was employed in later wars against the British to block British advances. Some of these fortifications were over a hundred yards long, with heavy parallel tree trunks. They were impervious to destruction by artillery fire. Behind these stockades, numerous Ashanti soldiers were mobilized to check enemy movement. While formidable in construction, many of these strongpoints failed because Ashanti guns, gunpowder and bullets were poor, and provided little sustained killing power in defense. Time and time again British troops overcame or bypassed
28036-468: Was encircled by a fortified wall. The huge walls around the settlement, which were built very tall and with stone blocks which are 6 feet (1.8 m) high and 4.5 feet (1.4 m) thick, make it one of the earliest walled settlements in Europe but it is younger than the walled town of Sesklo in Greece from 6800 BC. Uruk in ancient Sumer ( Mesopotamia ) is one of the world's oldest known walled cities . The Ancient Egyptians also built fortresses on
28208-435: Was found. Exceptions were few—notably, ancient Sparta and ancient Rome did not have walls for a long time, choosing to rely on their militaries for defence instead. Initially, these fortifications were simple constructions of wood and earth, which were later replaced by mixed constructions of stones piled on top of each other without mortar . In ancient Greece , large stone walls had been built in Mycenaean Greece , such as
28380-473: Was highlighted by Charles Martel , who as Mayor of the Palace was effectively the strongest prince in the kingdom. His accomplishments were highlighted, not just by his famous defeat of invading Muslims at the Battle of Tours , which is typically considered the battle that saved Europe from Muslim conquest, but by the fact that he greatly expanded Frankish influence. It was under his patronage that Boniface expanded Frankish influence into Germany by rebuilding
28552-432: Was offered to Pepin. With this, the Merovingian line of kings ended, and the Carolingian line began. Pepin's son Charlemagne continued in the footsteps of his father and grandfather. He further expanded and consolidated the Frankish kingdom (now commonly called the Carolingian Empire ). His reign also saw a cultural rebirth, commonly called the Carolingian Renaissance . Though the exact reasons are unclear, Charlemagne
28724-419: Was often fast and dramatic as it became unsafe to travel or carry goods over any distance; there was a consequent collapse in trade and manufacture for export. Major industries that depended on trade, such as large-scale pottery manufacture, vanished almost overnight in places like Britain. Tintagel in Cornwall , as well as several other centres, managed to obtain supplies of Mediterranean luxury goods well into
28896-478: Was published by Giovanni Battista Zanchi in 1554. Fortifications also extended in depth, with protected batteries for defensive cannonry, to allow them to engage attacking cannons to keep them at a distance and prevent them from bearing directly on the vulnerable walls. The result was star shaped fortifications with tier upon tier of hornworks and bastions , of which Fort Bourtange is an excellent example. There are also extensive fortifications from this era in
29068-406: Was regarded as the abode of giants. Chun Castle in Morvah is related as the home of the giant Denbras who is buried by the character Tom at Chun Quoit from oral folklore recorded by William Bottrell published 1870. Kelly Rounds (Castle Kilibury) in Triggshire is often proposed as the location of King Arthur's Celliwig , known from the Welsh poem Pa Gwr yw y Porthawr? and described in
29240-438: Was relatively Romanized, at least when compared to the Germanic kingdoms in northern Europe. It was highly decentralized at first, with the territorial dukes having practical sovereignty in their duchies, especially in the southern duchies of Spoleto and Benevento . For a decade following the death of Cleph in 575, the Lombards did not even elect a king; this period is called the Rule of the Dukes . The first written legal code
29412-406: Was stable and well developed. The Franks, in contrast, were barely any different from their barbarian Germanic ancestors. The Kingdom of the Franks was weak and divided. Impossible to guess at the time, but by the end of the century, the Lombardic kingdom would be extinct, while the Frankish kingdom would have nearly reassembled the Western Roman Empire. Though much of Roman civilization north of
29584-484: 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. 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
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