In the first 20 years of occupation some progress had been made in spreading Roman civilization. Towns had been founded, the imperial cult had been established, and merchants were busily introducing the Britons to material benefits. It was not, however, until the Flavian period, ad 69–96, that real advances were made in this field. With the occupation of Wales by Julius Frontinus (governor from 74 to 78) and the advance into northern Scotland by Gnaeus Julius Agricola (78–84), troops were removed from southern Britain, and self-governing civitates, administrative areas based for the most part on the indigenous tribes, took over local administration. This involved a large program of urbanization and also of education, which continued into the 2nd century; Tacitus, in his biography of Agricola, emphasizes the encouragement given to it. Roman conquest of Wales was complete by 78, but Agricola’s invasion of Scotland failed because shortage of manpower prevented him from completing the occupation of the whole island. Moreover, when the British garrison was reduced (c. ad 90) by a legion because of continental needs, it became evident that a frontier would have to be maintained in the north. After several experiments, the Solway–Tyne isthmus was chosen, and there the emperor Hadrian built his stone wall (c. 122–130). Condition of the province
There was a marked contrast in attitude toward the Roman occupation between the lowland Britons and the inhabitants of Wales and the hill country of the north. The economy of the former was that of settled agriculture, and they were largely of Belgic stock; they soon accepted and appreciated the Roman way of life. The economy of the hill dwellers was pastoral, and the urban civilization of Rome threatened their freedom of life. Although resistance in Wales was stamped out by the end of the 1st century ad, Roman influences were nonetheless weak except in the Vale of Glamorgan. In the Pennines until the beginning of the 3rd century there were repeated rebellions, the more dangerous because of the threat of assistance from free Scotland. Army and frontier
After the emperor Domitian had reduced the garrison in about the year 90, three legions remained; their permanent bases were established at York, Chester, and Caerleon. The legions formed the foundation of Roman military power, but they were supplemented in garrison duty by numerous smaller auxiliary regiments both of cavalry and infantry, either 1,000 or 500 strong. These latter garrisoned the wall and were stationed in a network of other forts established for police work in Wales and northern England. With 15,000 legionaries and about 40,000 auxiliaries, the army of Britain was very powerful; its presence had economic as well as political results. Hadrian’s Wall was the most impressive frontier work in the Roman Empire. Despite a period in the following two reigns when another frontier was laid out on the Glasgow–Edinburgh line—the Antonine Wall, built of turf—the wall of Hadrian came to be the permanent frontier of Roman Britain. The northern tribes only twice succeeded in passing it, and then at moments when the garrison was fighting elsewhere. In the late Roman period, when sea raiding became prevalent, the wall lost its preeminence as a defense for the province, but it was continuously held until the end of the 4th century. But although they withdrew to Hadrian’s line not later than the year 180, the Romans never abandoned interest in southern Scotland. In the 2nd century their solution was military occupation. In the 3rd, after active campaigning (208–211) by the emperor Septimius Severus and his sons during which permanent bases were built on the east coast of Scotland, the solution adopted by the emperor Caracalla was regulation of relationship by treaties. These, perhaps supported by subsidies, were enforced by supervision of the whole Lowlands by patrols based on forts beyond the wall. During the 4th century more and more reliance was placed on friendly native states, and patrols were withdrawn. Administration
Britain was an imperial province. The governor represented the emperor, exercising supreme military as well as civil jurisdiction. As commander of three legions he was a senior general of consular rank. From the late 1st century he was assisted on the legal side by a legatus juridicus. The finances were in the hands of the provincial procurator, an independent official of equestrian status whose staff supervised imperial domains and the revenues of mines in addition to normal taxation. In the early 3rd century Britain was divided into two provinces in order to reduce the power of its governor to rebel, as Albinus had done in 196: Britannia Superior had its capital at London and a consular governor in control of two legions and a few auxiliaries; Britannia Inferior, with its capital at York, was under a praetorian governor with one legion but many more auxiliaries.
Local administration was of varied character. First came the chartered towns. By the year 98 Lincoln and Gloucester had joined Camulodunum as coloniae, and by 237 York had become a fourth. Coloniae of Roman citizens enjoyed autonomy with a constitution based on that of republican Rome, and Roman citizens had various privileges before the law. It is likely that Verulamium was chartered as a Latin municipium (free town); in such a town the annual magistrates were rewarded with Roman citizenship. The remainder of the provincials ranked as peregrini (subjects). In military districts control was in the hands of fort prefects responsible to legionary commanders; but by the late 1st century local self-government, as already stated, was granted to civitates peregrinae, whose number tended to increase with time. These also had republican constitutions, being controlled by elected councils and annual magistrates and having responsibility for raising taxes and administering local justice. In the 1st century there were also client kingdoms whose rulers were allied to Rome; Cogidubnus, Verica’s successor, who had his capital at Chichester, is the best known. But Rome regarded these as temporary expedients, and none outlasted the Flavian Period (69–96). Roman society
Pre-Roman Celtic tribes had been ruled by kings and aristocracies; the Roman civitates remained in the hands of the rich because of the heavy expense of office. But since trade and industry now yielded increasing profits and the old aristocracies no longer derived wealth from war but only from large estates, it is likely that new men rose to power. Roman citizenship was now an avenue of social advancement, and it could be obtained by 25 years’ service in the auxiliary forces as well as (more rarely) by direct grants. Soldiers and traders from other parts of the empire significantly enhanced the cosmopolitan character of the population, as did the large number of legionaries, who were already citizens and many of whom must have settled locally. The population of Roman Britain at its peak amounted perhaps to about two million. Economy
Even before the conquest, according to the Greek geographer Strabo, Britain exported gold, silver, iron, hides, slaves, and hounds in addition to grain. A Roman gold mine is known in Wales, but its yield was not outstanding. Iron was worked in many places but only for local needs; silver, obtained from lead, was of more significance. But the basis of the economy was agriculture, and the conquest greatly stimulated production because of the requirements of the army. According to Tacitus, grain to feed the troops was levied as a tax; correspondingly more had to be grown before a profit could be made. The pastoralists in Wales and the north probably had to supply leather, which the Roman army needed in quantity for tents, boots, uniforms, and shields. A military tannery is known at Catterick. A profit could, nonetheless, be won from the land because of the increasing demand from the towns. At the same time the development of a system of large estates (villas) relieved the ancient Celtic farming system of the necessity of shouldering the whole burden. Small peasant farmers tended to till the lighter, less-productive, more easily worked soils. Villa estates were established on heavier, richer soils, sometimes on land recently won by forest clearance, itself a result of the enormous new demand for building timber from the army and the new towns and for fuel for domestic heating and for public baths. The villa owners had access to the precepts of classical farming manuals and also to the improved equipment made available by Roman technology. Their growing prosperity is vouched for by excavation: there are few villas that did not increase in size and luxury as corridors and wings were added or mosaics and bath blocks provided. At least by the 3rd century some landowners were finding great profit in wool; Diocletian’s price edict (ad 301) shows that at least two British cloth products had won an empire-wide reputation. Archaeological evidence indicates that the Cotswold district was one of the centres of this industry.