After the expulsion of the Carthaginians from Spain, the Romans controlled only that part of the peninsula that had been affected by the war: the eastern seaboard and the valley of the river Baetis (Guadalquivir). Although over the next 30 years the Romans fought almost continuously—chiefly against Iberian tribes of the northeast, against the Celtiberians in the northeastern Meseta, and against the Lusitanians in the west—there is little sign that this opposition to Roman rule was coordinated, and, although the area under Roman control increased in size, it did so only slowly. The region was divided into the two military areas (provinciae) of Nearer and Further Spain (Hispania Citerior and Hispania Ulterior) in 197, after which elected magistrates (praetors) were sent out, usually for two-year periods, to command the armies; the Romans, however, were more interested in winning victories over Spanish tribes (and so gaining the accolade of a triumph—a ceremonial victory march through the city of Rome) than in establishing any organized administration. After the campaigns of Tiberius Sempronius Gracchus (father of the famous tribune of the same name) and Lucius Postumius Albinus in 180–178, treaties were arranged with the Celtiberians and probably with other tribes, as a result of which Roman taxation seems to have become more regular.
In the middle of the 2nd century, during a period when Rome was not otherwise occupied by fighting in the eastern Mediterranean or Africa, large-scale wars broke out in Celtiberia in the northern part of the Meseta and in Lusitania, which resulted in a series of consuls (senior magistrates) being sent to Spain. Those struggles continued sporadically for the next two decades, during which Roman armies were defeated on several occasions, notably in 137 when an entire army commanded by the consul Gaius Hostilius Mancinus was forced to surrender to the Celtiberians. The war against the Lusitanians was ended only by the assassination of their leader, Viriathus, in 139, and the Celtiberians were finally subdued in 133 by the capture of their main town, Numantia (near modern Soria), after a prolonged siege conducted by Publius Scipio Aemilianus (Scipio Africanus the Younger), the grandson by adoption of Hannibal’s opponent.
In the 1st century bce, Spain was involved in the civil wars afflicting the Roman world. In 82 bce, after Lucius Cornelius Sulla captured Rome from the supporters of Gaius Marius (who had died four years earlier), the Marian governor of Nearer Spain, Quintus Sertorius, relying partly on his good relations with local Spanish communities, successfully frustrated the attempts of two Roman commanders, Quintus Metellus Pius and the young Pompey, to regain control of the peninsula, until Sertorius’s assassination in 72 resulted in the collapse of his cause. During the wars between Julius Caesar and Pompey, Caesar rapidly secured Spain by a victory over the Pompeians at Ilerda (Lleida); but after Pompey’s murder in Egypt in 48, his sons, Gnaeus and Sextus Pompey, raised the south of the peninsula and posed a serious threat until Caesar himself defeated Gnaeus at the Battle of Munda (in present-day Sevilla province) in 45. Not until the reign of Augustus—who, after the defeat of Mark Antony at the Battle of Actium in 31, became master of the entire Roman Empire—was the military conquest of the peninsula complete. The last area, the Cantabrian Mountains in the north, took from 26 to 19 bce to subdue and required the attention of Augustus himself in 26 and 25 and of his best general, Marcus Vipsanius Agrippa, in 19. It was probably after this that the peninsula was divided into three provinces: Baetica, with its provincial capital at Corduba (Córdoba); Lusitania, with its capital at Emerita Augusta (Mérida); and Tarraconensis (still called Hispania Citerior in inscriptions), based on Tarraco (Tarragona). Romanization
It does not seem that the Romans pursued a policy of deliberate “Romanization” of their Spanish provinces, at least for the first two centuries of their presence there. Scipio left some of his wounded veterans at Italica (Santiponce, near Sevilla) in 206; the Roman Senate allowed a settlement of 4,000 offspring of Roman soldiers and native women to be established at Carteia (near Algeciras) in 171; and further veteran settlements were probably placed at Corduba and Valentia (Valencia) during the 2nd century bce. There had certainly been migration from Italy to the silver-mining areas in the south during that period, and in Catalonia Roman villas, whose owners were producing wine for export, appeared at Baetulo (Badalona) before the end of the 2nd century. It was not until the period of Julius Caesar and Caesar Augustus, however, that full-scale Roman-style foundations (coloniae) were established for the benefit of Roman legionary veterans, some on already-existing native towns (as at Tarraco) and some on sites where there was relatively small-scale habitation previously, as at Emerita Augusta. By the early 1st century ce, there were nine such foundations in Baetica, eight in Tarraconensis, and five in Lusitania. An inscription from one of those colonies, the colonia Genetiva Iulia at Urso (Osuna), which contains material from the time of its foundation under Julius Caesar, shows a community of Roman citizens with their own magistrates and religious officials, a town council, and common land assigned to the town.
During the reign of Augustus and through the period up to the overthrow of the emperor Nero in 68 ce, native communities also began to model themselves on the Roman pattern, setting up public buildings (including a forum, buildings for local government, temples, and bathhouses); some acquired the status of municipium, by which the inhabitants gained the so-called Latin right, which afforded privileges under Roman law and allowed the magistrates of the town to become Roman citizens. That process was advanced rapidly during the reign of the Flavian emperors—Vespasian (69–79 ce), Titus (79–81 ce), and Domitian (81–96 ce). Vespasian is said to have granted the Latin right to all the communities of Spain, and, although that is almost certainly an exaggeration, epigraphic evidence from towns in Baetica (especially a long inscription on six bronze tablets from Irni [near Algámitas, Sevilla] unearthed in 1981) reveals the existence of a general charter for those Latin municipia issued in the reign of Domitian, requiring them to adopt the forms of Roman law and to organize themselves on lines not unlike those used by the coloniae of Roman citizens. It is likely that this particular interest in Spain resulted from the support given by Spanish communities to Servius Sulpicius Galba, who, while governor of Tarraconensis in 68 ce, had participated in the uprising against Nero and had been emperor for a few months in 68–69.
The extent to which the upper classes in the towns and cities of Spain, of both immigrant and native stock, were part of the elite of the Roman Empire as a whole in the 1st century ce can be seen by the appearance of men of Spanish origin in the life of Rome itself. Those include the philosopher and writer Lucius Annaeus Seneca (c. 4 bce–65 ce) from Corduba, who was the tutor and subsequent adviser to Nero, and the poet Martial (c. 38–c. 103 ce), born at Bilbilis (near Calatayud)—a municipium since the time of Augustus—who was active in Rome under the Flavian emperors. A growing number of Roman senators were natives of Spain, including Trajan and Hadrian, who later became emperors (98–117 and 117–138 ce, respectively); both came from Italica.