The Caledonians (//; Latin: Caledones or Caledonii; Greek: Καληδῶνες, Kalēdōnes) or the Caledonian Confederacy were a Brittonic-speaking (Celtic) tribal confederacy in what is now Scotland during the Iron Age and Roman eras. The Greek form of the tribal name gave rise to the name Caledonia for their territory. The Caledonians were considered to be a group of Britons, but later, after the Roman conquest of the southern half of Britain, the northern inhabitants were distinguished as Picts, thought to be a related people who would have also spoken a Brittonic language. The Caledonian Britons were thus enemies of the Roman Empire, which was the occupying force then administering most of Great Britain as the Roman province of Britannia.
The Caledonians, like many Celtic tribes in Britain, were hillfort builders and farmers who defeated and were defeated by the Romans on several occasions. The Romans never fully occupied Caledonia, though several attempts were made. Nearly all of the information available about the Caledonians is based on predominately Roman sources, which may suggest bias.
Peter Salway assumes that the Caledonians would have been Pictish tribes speaking a language closely related to Common Brittonic, or a branch of it augmented by fugitive Brythonic resistance fighters fleeing from Britannia. The Caledonian tribe, after which the historical Caledonian Confederacy is named, may have been joined in conflict with Rome by tribes in northern central Scotland by this time, such as the Vacomagi, Taexali and Venicones recorded by Ptolemy. The Romans reached an accommodation with Brythonic tribes such as the Votadini as effective buffer states.
According to German linguist Stefan Zimmer, Caledonia is derived from the tribal name Caledones (a Latinization of a Brittonic nominative plural n-stem Calīdones), which he etymologises as "possessing hard feet" ("alluding to standfastness or endurance", from the Proto-Celtic roots *kal- "hard" and *φēdo- "foot"). The singular form of the ethnic name is attested as Caledo (a Latinization of the Brittonic nominative singular n-stem *Calidū) on a Romano-British inscription from Colchester.
In AD 83 or 84, led by Calgacus, the Caledonians' defeat at the hands of Gnaeus Julius Agricola at Mons Graupius is recorded by Tacitus. Tacitus avoids using terms such as king to describe Calgacus and it is uncertain as to whether the Caledonians had single leaders or whether they were more disparate and that Calgacus was an elected war leader only. Tacitus records the physical characteristics of the Caledonians as red hair and long limbs.
In AD 180 they took part in an invasion of Britannia, breached Hadrian's Wall and were not brought under control for several years, eventually signing peace treaties with the governor Ulpius Marcellus. This suggests that they were capable of making formal agreements in unison despite supposedly having many different chieftains. However, Roman historians used the word "Caledonius" not only to refer to the Caledones themselves, but also to any of the other tribes (both Pictish or Brythonic) living north of Hadrian's Wall, and it is uncertain whether these later were limited to individual groups or wider unions of tribes.
In 197 AD Dio Cassius records that the Caledonians aided in a further attack on the Roman frontier being led by the Maeatae and the Brigantes and probably inspired by the removal of garrisons on Hadrian's Wall by Clodius Albinus. He says the Caledonians broke the treaties they had made with Marcellus a few years earlier (Dio lxxvii, 12).
The Caledonians are next mentioned in 209, when they are said to have surrendered to the emperor Septimius Severus after he personally led a military expedition north of Hadrian's Wall, in search of a glorious military victory. Herodian and Dio wrote only in passing of the campaign but describe the Caledonians ceding territory to Rome as being the result. Cassius Dio records that the Caledonians inflicted 50,000 Roman casualties due to attrition and unconventional tactics such as guerrilla warfare. Dr. Colin Martin has suggested that the Severan campaigns did not seek a battle but instead sought to destroy the fertile agricultural land of eastern Scotland and thereby bring about genocide of the Caledonians through starvation.
By 210 however, the Caledonians had re-formed their alliance with the Maeatae and joined their fresh offensive. A punitive expedition led by Severus' son, Caracalla, was sent out with the purpose of slaughtering everyone it encountered from any of the northern tribes. Severus meanwhile prepared for total conquest but was already ill; he died at Eboracum (modern day York) in Britannia in 211. Caracalla attempted to take over command but when his troops refused to recognise him as emperor, he made peace with the Caledonians and retreated south of Hadrian's Wall to press his claim for the imperial title. Sheppard Frere suggests that Caracalla briefly continued the campaign after his father's death rather than immediately leaving, citing an apparent delay in his arrival in Rome and indirect numismatic and epigraphic factors that suggest he may instead have fully concluded the war but that Dio's hostility towards his subject led him to record the campaign as ending in a truce. Malcolm Todd however considers there to be no evidence to support this. Nonetheless the Caledonians did retake their territory and pushed the Romans back to Hadrian's Wall.
In any event, there is no further historical mention of the Caledonians for a century save for a c. AD 230 inscription from Colchester which records a dedication by a man calling himself the nephew (or grandson) of "Uepogenus, [a] Caledonian". This may be because Severus' campaigns were so successful that the Caledonians were wiped out, however this is highly unlikely. In 305, Constantius Chlorus re-invaded the northern lands of Britain although the sources are vague over their claims of penetration into the far north and a great victory over the "Caledones and others" (Panegyrici Latini Vetares, VI (VII) vii 2). The event is notable in that it includes the first recorded use of the term 'Pict' to describe the tribes of the area.
Tacitus in his Agricola, chapter XI (c. 98 AD) described the Caledonians as red haired and large limbed, which he considered features of Germanic origin: “The reddish (rutilae) hair and large limbs of the Caledonians proclaim a German origin”. Jordanes in his Getica wrote something similar:
Eumenius, the panegyrist of Constantine Chlorus, wrote that both the Picts and Caledonians were red haired (rutilantia). Scholars such as William Forbes Skene noted that this description matches Tacitus' description of the Caledonians as red haired in his Agricola.
There is little direct evidence of a Caledonian archaeological culture but it is possible to describe the settlements in their territory during their existence.
The hillforts that stretched from the North York Moors to the Scottish Highlands are evidence of a distinctive character emerging in northern Great Britain from the Middle Iron Age onwards. They were much smaller than the hillforts further south, often less than 10,000 square metres in area (one hectare, about 2.47 acres), and there is no evidence that they were extensively occupied or defended by the Caledonians, who appear to generally have had a dispersed settlement pattern.
By the time of the Roman invasion there had been a move towards less heavily fortified but better sheltered farmsteads surrounded by earthwork enclosures. Individual family groups likely inhabited these new fortified farmsteads, linked together with their neighbours through intermarriage.
The reason for this change from hilltop fortresses to farms amongst the Caledonians and their neighbours is unknown. Barry Cunliffe considers that the importance of demonstrating an impressive residence became less significant by the second century because of falling competition for resources due to advances in food production or a population decline. Alternatively, finds of Roman material may mean that social display became more of a matter of personal adornment with imported exotica rather than building an impressive dwelling.
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